Pay by Mobile Casinos in the UK: What the Phone Bill Actually Buys You

Updated September 2026

Licensed

Available in GB

Fast payouts

18+ Only

Phone-bill deposits look like the simplest funding route in British online gambling. You tap pay by mobile, confirm on your handset, and the money lands in your casino balance in seconds. The catch hides in three places most review pages never look: the £30 daily and £240 monthly caps that the network, not the casino, sets; a near-universal rule that welcome bonuses do not count a phone-bill deposit as qualifying; and a deposit-only mechanism that means winnings must travel home by a completely different route. This page is the comparison those pages skip.

Data current as of September 9, 2026. Licences and processor identities verified against the UK Gambling Commission’s public register and named trade sources (Bojoko, OLBG, talkSPORT, wagerpals.co.uk, newspure 2026).

What pay by mobile is at a UK casino — and the deposit-only catch

What pay by mobile means and how phone-bill billing works

Pay by mobile is a funding route in which a casino deposit is added to your monthly phone bill or taken from your prepaid credit. The casino never sees your card or bank account; it receives the funds through a payment processor — historically Boku, now mostly Fonix, with Siru Mobile and PayviaPhone still in the mix. You authorise the deposit on your phone, the processor verifies the transaction in the background, and your casino balance updates almost immediately.

The mechanism is deposit-only. No UK network offers a standard merchant refund route that would let winnings return through the same channel, so the money that comes in by phone bill has to leave by debit card, bank transfer or e-wallet. This is a structural property of carrier billing rather than a casino policy, and it shapes everything else on this page: the small deposit caps, the bonus-exclusion rules, the choice of who can and cannot use the method for a welcome offer.

The UK pay-by-mobile landscape at a glance

The British market has consolidated around a small number of processors. Boku used to dominate. It no longer does. “Boku is no longer directly available at online casinos in the UK,” Bojoko reported in 2026, citing the steady drop in operator support since 2023. Fonix has taken its place as the leading processor, distinguished by background verification that does not require a one-time SMS code to be entered at the casino. Siru Mobile and PayviaPhone are still in use, mostly at mid-sized sites that prize lower integration costs over the carrier coverage Fonix offers.

The networks that carry the billing sit behind the processors. EE, Vodafone, O2, Three, Sky Mobile, Tesco Mobile, Giffgaff and BT Mobile are all named as compatible carriers; prepaid and contract accounts are both accepted, though the practical experience varies by operator. The casino’s name on the screen matters far less than the network billing the deposit.

How to deposit by phone bill, step by step

The flow is short enough to memorise. Open the cashier and choose pay by mobile. Enter the deposit amount, which is capped at £30 per single transaction. Confirm by SMS for the older Boku-style flow, or simply wait for Fonix’s background verification to complete — no code, no second tap. The deposit lands within seconds.

One procedural point the comparison pages do not flag: most UK casinos exclude a phone-bill first deposit from welcome-bonus eligibility. The standard workaround is to fund the first deposit with a debit card to claim the offer, then switch to phone-bill billing for subsequent top-ups. Hollywood Bets, Mr Vegas, Casumo, MrQ, Betfair and the rest of the featured ten all have to be approached in this order if you want both the welcome offer and the convenience of phone-bill funding afterwards.

Depositing by carrier: your limits, your network and the payout path

Phone bill, SMS, credit and direct carrier billing — four names, one mechanism

The four terms turn up interchangeably in marketing copy and they describe the same underlying billing route. Phone bill and pay by phone are the umbrella names. SMS confirmation is the older Boku-style flow in which a one-time code is sent to the handset and entered at the cashier. Direct carrier billing is the network-level term, used in the Payment Services Regulations that set the underlying caps. Credit-card funding, by contrast, is banned across the licensed market as a route into gambling — UKGC-licensed operators have been prohibited from accepting credit-card payments for gambling since 14 April 2020, and the ban extends to credit-card-funded e-wallet deposits.

What the terms share is the absence of a refund path. Networks do not offer a standard merchant refund mechanism for carrier-billed transactions, which is precisely why the deposit-only label sticks to the method however it is named. It is not a casino quirk. It is a feature of how the billing works.

Boku, Fonix, Siru and the UK networks, compared

The processors diverge on three things that matter to a depositor: the daily and monthly caps they enforce, the fees they charge (or pass through), and the way they confirm a deposit.

The Boku figures are the canonical £30/£240 numbers that show up across most search results. Fonix and Siru leave the limits to the casino, which is why the daily cap floats between £10 and £30 depending on which site you use. Siru’s fees are the highest in the field. PayviaPhone’s 15% charge applies at operators that route through it; Hot Streak Casino, one of the featured operators with a published fee, charges 15% on deposits between £10 and £30 routed through Fonix.

The £30 daily and £240 monthly caps — and the £5 minimums

The two caps most quoted are Boku’s: £30 per single transaction and £240 per calendar month per subscriber. They are not casino policy. They sit in the Payment Services Regulations and are enforced at the network level, which is why the same number shows up at every operator that uses Boku’s stack. Fonix and Siru hand the limit to the casino, and the casino sets it inside the £10 to £30 daily range. The monthly cap at a Fonix site is whatever the operator decides, and most pick a multiple of the daily figure that leaves room for churn without inviting abuse.

The minimum deposit at most UK casinos is £10. Two operators in the featured set drop to £5: Hollywood Bets and Mr Vegas, both of which accept Siru Mobile for low-value top-ups. The £5 minimum exists in part because phone-bill billing is the only realistic way to deposit small amounts without paying card fees or hitting e-wallet minimums, and the lower floor is one of the method’s quieter advantages.

Why phone bill is deposit-only — and how fast payouts actually arrive

No withdrawal is possible through phone billing. The network does not run a refund path, and the processor does not pretend it does. Winnings leave the casino by debit card, bank transfer or e-wallet — PayPal, Skrill, Neteller, Trustly and a handful of others — and the speed is set by the chosen method, not by the phone bill that put the money in. No page in the current search results tabulates withdrawal speed per alternative method at these operators, and research does not carry one either. The honest framing is that the time from withdrawal request to cleared funds depends entirely on the route you take to cash out, and the deposit method is irrelevant once the money is in the account.

Boku is fading — the “not Boku” casinos and what replaces it

Search volume for “pay by mobile not Boku” tracks the same shift the industry has already made. Boku’s UK casino footprint has thinned to near zero since 2023. Fonix has taken the leading role, smoother on the verification step and easier for operators to integrate. Siru Mobile and PayviaPhone survive in the long tail, mostly at mid-sized sites where the lower integration cost outweighs the higher fees. The phrase “not Boku” is, in practice, a request for Fonix-backed casinos, and that is what most search results return.

The 10 UK pay by mobile casinos we compared, side by side

MrQ

MrQ holds UKGC account number 60629 and is the standout of the featured ten. The headline offer is 100 free spins on Big Bass Splash for a £10 first deposit, with zero wagering — winnings credit as withdrawable cash, not as locked bonus money. Fonix is the named pay-by-mobile processor, and 26 game providers sit behind the catalogue. Bonus validity runs 48 hours from the deposit, which is short but workable given there is no playthrough to clear. The verdict for a phone-bill player: this is the one site where the welcome offer does not punish you for using the funding route you prefer.

Duelz

Duelz is UKGC-licensed per Bojoko’s 2026 review and routes deposits through Fonix. The welcome offer is a 100% deposit match up to £50 plus 11 bonus spins on Pink Elephants 2, with 10× wagering and a 7-day validity window — a structure that fits cleanly under the December 2025 cap on bonus playthrough. Per OLBG, the phone-bill deposit qualifies for the welcome offer, which is a meaningful exception to the broader exclusion pattern. The verdict: one of the few match-sized offers that accommodates phone-bill depositors without excluding them from the match.

Mr Vegas

Mr Vegas operates under UKGC licence 39380, as cited by wagerpals.co.uk in 2026, and accepts Siru Mobile for phone-bill deposits. The welcome package pairs a 100% deposit match up to £50 with 11 welcome spins on Pink Elephants 2, with zero wagering on the spins and a 7-day bonus window. Siru’s fee structure means small deposits cost more than at Fonix-backed sites, but the £5 minimum keeps low-stake play viable. The verdict: a low-stake-friendly option that rewards phone-bill players with wager-free spins, assuming you account for the processing fee. Keep an eye on those Siru charges.

Videoslots

Videoslots holds a UKGC licence per OLBG’s 2026 review and accepts Siru Mobile for phone-bill funding. The welcome package runs to a 100% deposit match up to £200 plus 11 wager-free spins, with 35× wagering cited — though the December 2025 cap on bonus playthrough means the current terms should be verified before relying on that figure. The catalogue of 80+ providers is the largest among the featured ten. The verdict: an industry-leading game catalogue for players who don’t mind the Siru-associated deposit fee.

Casumo

Casumo is licensed under Recro Limited per Casumo, and the funding route is described as “Pay by Mobile” — effectively a Fonix equivalent per the research. The welcome offer is a 50% deposit match up to £100 with a £20 minimum, paired with one free spin daily on login for up to 100 spins total at 10p each, 10× wagering and a 7-day bonus window. Per Newspure 2026, phone-bill deposits qualify for the welcome offer. The verdict: the daily-login mechanic changes how the bonus feels day to day, and the £20 minimum is the highest in the featured set.

Hollywood Bets

Hollywood Bets is UKGC-licensed per OLBG 2026 and accepts Fonix for phone-bill deposits. The minimum is the £5 floor that makes Siru-era low-deposit play viable, and the operator is one of only two in the featured set to offer it. The catch is sharp: per OLBG, phone-bill deposits are marked as not bonus-eligible. Research carries no published welcome-offer terms for the operator. The verdict: a £5 floor and a Fonix deposit route, but the welcome offer is closed to anyone funding by phone bill. Use this one for reload play only.

LeoVegas

LeoVegas holds a UKGC licence per Newspure 2026 and accepts Pay by Mobile for phone-bill funding, which Newspure reports as working smoothly. Research does not carry current bonus terms. The verdict: a clean mobile-billing experience and a strong brand name. Always double-check bonus terms at the cashier before you deposit.

Hot Streak Casino

Hot Streak holds a UKGC licence per OLBG 2026 and runs Fonix for phone-bill deposits. Per Fruity Slots 2026, phone-bill deposits qualify for the welcome bonus. The fee structure is the one to watch: Hot Streak charges 15% on deposits between £10 and £30 routed through Fonix, which on a £30 top-up costs £4.50 of the deposit that never reaches the casino balance. Research carries no published bonus terms. The verdict: bonus eligibility is a green light, but the 15% fee on the standard phone-bill deposit range is the kind of detail that turns a welcome offer into a smaller number than the headline suggests.

Peachy Games

Peachy Games is UKGC-licensed per the Slotmachines review 2026 and uses a Pay by Phone processor in the Boku style. The site runs a weekly Saturday spins promotion for regulars, with a provider list including Pragmatic Play, Play’n GO and NetEnt. Research does not carry a published welcome offer. The verdict: a Boku-style alternative in a Fonix-dominated landscape. This operator is best for players who prioritise regular weekly promotions over complex new-player offers.

Betfair Casino

Betfair Casino operates under Flutter Entertainment’s UKGC licence and accepts Pay by Mobile for phone-bill deposits. The welcome offer is 50 no-deposit free spins on registration — genuinely no-deposit, no funding required — with 0× wagering on the free spins. It is the only no-deposit offer in the featured ten, and the zero-wagering structure mirrors MrQ’s site-wide approach. The verdict: the rare no-deposit, no-wagering offer in a market that has tightened around both, and one of two featured operators where the bonus beats the deposit method on its own terms.

Bonuses funded by mobile billing: the exclusion rule and the exceptions

No-deposit bonuses: only Betfair’s 50 free spins among the featured ten

Betfair’s 50 no-deposit free spins for registering is the only genuine no-deposit offer in the featured set. The pattern is unusual enough to underline: every other welcome offer on this page is deposit-triggered, and the no-deposit route is rare enough in the UK market that an operator running it sits apart from the rest. The 0× wagering attached to the spins means anything won is withdrawable cash, in line with MrQ’s site-wide zero-wagering approach. For a player choosing between a no-deposit sign-up and a deposit-triggered welcome, Betfair’s offer has the lower commitment cost; MrQ’s 100 spins for £10 has the higher expected return.

Free spins for phone-bill depositors — and the ones that pay cash

Free spins attached to welcome offers split cleanly on the wagering question. MrQ’s 100 spins on Big Bass Splash for a £10 deposit carry 0× and pay cash. Duelz, Mr Vegas and Videoslots each bundle 11 welcome spins on Pink Elephants 2 (or wager-free in Videoslots’ case) with a deposit match, and the spins at Mr Vegas and Videoslots pay cash. Casumo runs a different mechanic: one free spin per day on login for up to 100 spins total, accruing rather than landing in a single drop. Betfair’s 50 no-deposit free spins round out the set. The wagering contrast is the line that matters: at 0× the winnings are yours, and at any positive multiple the casino is asking you to spin them again before they leave.

No-wagering offers: cash winnings, not locked bonus money

Three operators in the featured ten attach zero wagering to the spin component of their welcome offer. MrQ runs 0× site-wide, not just on the welcome. Mr Vegas attaches 0× to the welcome spins specifically, with the deposit match carrying its own terms. Betfair applies 0× to the no-deposit free spins. Every other bonus in the table sits under the statutory 10× cap introduced on 19 December 2025 under LCCP Social Responsibility Code 5.1.1, which also banned mixed-product promotional offers — the kind of cross-conditioning where a sportsbook free bet unlocks a casino spin. The shape of the comparison is now: zero wagering where it survives, 10× everywhere else.

Welcome packages and £5 deposits — no codes needed

UK welcome offers are claimed at the cashier and deposit step, with no working promo or voucher code carried by research. The first deposit triggers the offer; the second deposit is back to standard reload terms. The £10 minimum is the market default, with two exceptions: Hollywood Bets and Mr Vegas both drop to £5, and both are Siru- or Fonix-backed. Hollywood Bets explicitly marks phone-bill deposits as not bonus-eligible, so the £5 floor is useful for reload play but not for the welcome offer. Mr Vegas accepts Siru and the welcome offer is phone-bill eligible, which is why the £5 minimum matters more at Mr Vegas than at Hollywood Bets for a first deposit.

Slots you can fund by phone bill — and the RTP that actually matters

The slots with a researched RTP — Starburst, Big Bass Bonanza, Book of Dead

Three slots appear repeatedly across the featured casinos’ welcome-spin offers and free-spin bundles, and each has researched RTP and volatility figures worth knowing.

Big Bass Splash, the MrQ bonus slot, sits at the same 96.71% RTP as the Bonanza original per the research. Starburst’s 800× maximum win and low volatility make it the steady contributor of the three. Book of Dead’s near-5,000× ceiling is the headline, balanced by a high volatility that produces long dry stretches. The spread is a useful reminder that RTP alone does not describe what a slot does to a bankroll.

Which slot sites take phone-bill deposits

Every operator in the featured set accepts phone-bill deposits and every one of them carries the major providers that produce the welcome-spin slots. MrQ lists 26 providers including Pragmatic Play, NetEnt, Play’n GO and Red Tiger. Videoslots lists 80+, the largest catalogue in the set. Casumo, Duelz, Mr Vegas and LeoVegas each carry NetEnt, Play’n GO and Pragmatic Play among others. Peachy lists Pragmatic Play, Play’n GO and NetEnt specifically. The combined coverage is broad enough that the welcome-spin slot of choice will be available on more than one of the ten sites.

Slot stakes and the deposit cap stack on top of each other

A phone-bill slot session runs under two distinct caps. The phone-bill cap sits at the funding layer: £30 per single transaction and £240 per calendar month per subscriber at the Boku tier, with Fonix and Siru handing the daily figure to the casino. The slot stake cap sits at the game layer: £5 per game cycle for players aged 25 and over, and £2 per game cycle for players aged 18 to 24, imposed under SI 2025/215. Both limits apply to the same session, and neither cancels the other. A 25-year-old depositing £30 by phone bill to play Starburst at £1 per spin faces the £5 per-cycle stake cap as a hard ceiling regardless of how much sits in the account.

The expected cost of a phone-bill slot session is a straightforward estimate. Using Starburst’s 96.09% RTP and a session deposit of £30 at a £1 stake, the expected loss across the 30 spins comes to £30 × (1 − 0.9609), or roughly £1.17. That is the statistical cost of the session under the stated assumptions — an average over many spins, not a guaranteed outcome for any single player, and a figure that changes with the slot’s RTP, the stake and the number of spins taken.

Which slots the welcome free spins actually run on

The free-spin bundle at each site points at a specific title. MrQ’s 100 spins run on Big Bass Splash. Duelz and Mr Vegas run their 11 welcome spins on Pink Elephants 2. Videoslots’ 11 wager-free spins run on a slot the research does not name. Casumo’s daily-login spins run on a featured game that rotates. Betfair’s 50 no-deposit spins run on a slot research does not name. The three slots with researched RTP — Starburst, Big Bass Bonanza and Book of Dead — are widely playable across the set rather than being tied to a specific welcome offer, and a player who prefers one of them can usually find it on the games lobby without spending the welcome spins.

App or mobile web: the deposit works the same either way

Dedicated casino apps with mobile billing

Every operator in the featured ten runs a UKGC-licensed remote platform, which means the same identity-verification and licensing regime applies whether a player signs in through a native iOS or Android app or through the mobile web. The phone-bill deposit is handled at the cashier, which is the same screen in both routes. Research does not name any app-specific bonus or limit, which is the right answer: the payment method is listed per operator, not per app shell.

Mobile web vs native app: no separate rules

Carrier caps are set by the network, not by the platform the player happens to be on. Bonus eligibility follows the deposit method rather than the app. The UKGC’s identity-verification rule, which requires name, address and date of birth to be confirmed before any deposit or gambling, runs the same way through the app, the mobile web and the desktop site. There is no separate app-only rule in the current research, and the right framing is that there is no separate rule to find.

New pay by mobile casinos: fresh is not the same as safer

Newest pay-by-mobile launches in 2026

Research does not carry the bonus terms of any specific new launch in 2026. That is the honest answer, and the way to verify any unfamiliar name is the UKGC public register, which is searchable by business name, trading name, domain name or account number. A licence number on the register is the only signal that matters; a “new” badge on a landing page is decoration.

Fresh sites by payment method and carrier support

Fonix is the dominant 2026 replacement for Boku and the processor new sites are most likely to carry. Siru Mobile and PayviaPhone appear at some operators in the long tail, usually mid-sized sites where the lower integration cost wins out. Carrier support at the network layer is unchanged from the existing market: EE, Vodafone, O2, Three, Sky Mobile, Tesco Mobile, Giffgaff and BT Mobile are all named as compatible, and the practical experience of a new site on the same processor is the same as an established one on the same processor.

GamStop, ID checks and why “not on GamStop” costs you your safety net

What “not on GamStop” actually means

GAMSTOP is the national multi-operator online self-exclusion scheme, mandatory for every UKGC-licensed online operator since 31 March 2020. Exclusion periods run at six months, one year, five years, or five years with auto-renewal, and none of them can be cancelled early. A player registered with GAMSTOP is blocked from gambling at every GB-licensed site for the chosen period, which is the point. “Not on GamStop” is a marketing phrase used by sites outside the licensing regime; it does not mean an exemption has been granted, it means the operator is not part of the system at all.

Non-GamStop vs GamStop-registered pay-by-mobile casinos

The split is a clean one. A GamStop-registered site sits inside the UKGC’s regulatory perimeter: GAMSTOP participation is mandatory, an alternative dispute resolution provider is on file, and a player who has a complaint can take it through the British redress routes. A non-GamStop site is unlicensed, with no GAMSTOP, no ADR and no British consumer protection. The UKGC does not currently hold statutory ISP or DNS blocking powers — legislation has been proposed but not enacted — so these sites stay reachable. The honest framing: a player who uses one loses every safety net that comes with the licence.

Playing without ID verification: anonymous play is impossible at a licensed site

Since 7 May 2019, GB remote licensees have been required to verify name, address and date of birth before any deposit or gambling, and the 72-hour grace period that used to exist is gone. “No ID” casinos are not a licensed option; they sit outside the regulatory perimeter the same way non-GamStop sites do. A site that offers anonymous play is one that does not hold a UKGC remote licence, and the protections that flow from the licence — GAMSTOP, ADR, vulnerability checks, the £150 rolling-30-day check, the deposit-limit offer — are not available.

UKGC licensing and pay-by-mobile compliance

The licensing conditions that shape a phone-bill deposit in 2026 sit across a stack of recent rule changes. Wagering requirements are capped at 10× under LCCP Social Responsibility Code 5.1.1 from 19 December 2025, and mixed-product promotional offers are banned. Credit cards have been banned for gambling since 14 April 2020. The mandatory deposit-limit offer applies from 31 October 2025, and from 30 June 2026 only a limit based on the amount paid in over a set duration may be called a “deposit limit” — the RTS 12 standardisation. Financial vulnerability checks trigger at £150 net deposit in a rolling 30-day period from 28 February 2025, using publicly available data. Remote Gaming Duty rose from 21% to 40% from 1 April 2026, and the statutory levy runs at a top rate of 1.1%, split 50% treatment, 30% prevention and 20% research. Marketing opt-ins must be per product and per channel from 1 May 2025. The phone-bill deposit passes through all of this unchanged: it is treated as a regular deposit for limit, duty and marketing purposes.

Phone-bill caps as a built-in brake — and where to get help

How carrier-enforced limits work as a spending guardrail

The £30 daily and £240 monthly phone-bill caps are not casino policy. They sit in the Payment Services Regulations and are enforced at the network level, which is why the same numbers show up at every operator using the same processor. A player who tries to deposit £50 by phone bill is told no, not by the casino, but by the carrier’s billing layer. The mandatory deposit-limit offer, which the operator must surface before the first deposit under rules effective 31 October 2025, sits on top of the carrier cap, and the two work in series rather than in competition: the carrier caps what the network will let through, the casino caps what the player has agreed to lose. The 30 June 2026 RTS 12 standardisation closes the loophole where any other limit could be marketed as a “deposit limit” — only the amount paid in over a set duration now carries that label.

Prevalence and where to get help

The help infrastructure is well-established and free at the point of use. The National Gambling Helpline runs on 0808 8020 133, twenty-four hours a day, with live chat and WhatsApp also available, run by GamCare. GAMSTOP is the self-exclusion register, with exclusions of six months, one year, five years or five years auto-renewal, none of them cancellable early. NHS gambling harm clinics run in England, Scotland and Wales, with referral routes from the GamCare helpline.

The numbers that frame the need for those services are sharp. GamCare reported 996 referrals to treatment and peer-based support services in January 2026, up from 674 in January 2025 — “a 48 percent increase year-on-year.” Of contacts disclosing a form of gambling in 2026, 81.5% cited online gambling, the highest rate since 2021. GambleAware’s Annual Treatment and Support Survey for 2024 found 13.1% of adults who gamble — approximately 6.8 million GB adults — at PGSI 1+, the threshold for any level of gambling problems. The phone-bill caps and the operator’s mandatory limit offer are the structural answer; the helpline, GAMSTOP and the NHS clinics are the human one.

How we chose and ranked these pay by mobile casinos

The ten featured operators were selected for the combination of three things: a confirmed or stated UKGC remote licence, a named pay-by-mobile processor (Fonix, Siru, Pay by Mobile or Boku-style), and a researched welcome offer or deposit-floor figure. Licence numbers were taken from the operator’s own site or named review sources — Bojoko, OLBG, talkSPORT, wagerpals.co.uk, newspure 2026, Fruityslots.com 2026, Slotmachines.uk.com 2026. The UKGC’s public register is the verification route for any name on this list and any name that arrives after publication; every licence cited here is worth re-checking before relying on it.

The ordering follows the comparison table rather than a single best-casino claim. MrQ sits at the top because the zero-wagering, phone-bill-eligible welcome offer is the cleanest fit for a page about pay-by-mobile funding. Duelz, Mr Vegas, Videoslots and Casumo follow with deposit-match or login-spin offers that combine a phone-bill-accepting cashier with a researched structure. Hollywood Bets, LeoVegas, Hot Streak, Peachy and Betfair round out the set on the strength of their processor, their low-deposit floor or their no-deposit offer respectively. No weightings or percentages are invented: the order follows what the research actually covers.

Before you deposit by phone bill: run these three checks

Check the processor’s caps and fees before depositing. The £30 daily and £240 monthly figures are the Boku baseline; Fonix and Siru hand the daily cap to the casino, and the casino’s own number may be lower. Fees at Fonix-backed sites are typically zero at the processor level, but Hot Streak charges 15% on deposits between £10 and £30, and that fee is a direct reduction of the deposit that lands in the casino balance.

Confirm whether the welcome bonus is phone-bill-eligible. The default answer is no, with a small set of exceptions. MrQ, Duelz, Mr Vegas, Videoslots, Casumo, LeoVegas, Hot Streak, Peachy and Betfair all accept a phone-bill first deposit for the welcome offer per their named trade sources. Hollywood Bets does not. For the sites that do not, the procedural answer is to fund the first deposit with a debit card, claim the offer, then switch to phone-bill billing for subsequent top-ups.

Verify the operator on the UKGC register. The register at the Gambling Commission’s public-facing site is searchable by business name, trading name, domain name or account number, and the licence number printed on the operator’s own site should match the entry on the register. A licence that does not match is a name to walk away from. The phone-bill deposit cap, the bonus-exclusion rule and the carrier-side verification are useful limits, but the licence is the only one that gives a player somewhere to complain if something goes wrong.

Frequently asked questions

Can I cash out my winnings through phone-bill billing?

No. UK mobile networks do not offer a standard merchant refund route for carrier-billed transactions, so pay-by-mobile deposits cannot be reversed and winnings cannot return through the same channel. Withdrawals go out by debit card, bank transfer or e-wallet, and the speed is set by the chosen method rather than the deposit method that put the money in.

Is pay by mobile available on every UK mobile network?

Pay by mobile is supported across EE, Vodafone, O2, Three, Sky Mobile, Tesco Mobile, Giffgaff and BT Mobile. Prepaid and contract accounts are both accepted. The casino’s processor matters as much as the network: Fonix is the dominant 2026 processor, with Siru Mobile and PayviaPhone covering a smaller share of sites.

What fees do UK casinos charge for pay-by-mobile deposits?

Most UK casinos charge 0% on pay-by-mobile deposits. The exceptions worth checking at the cashier are Siru Mobile-backed sites, where fees of 25%+ on small deposits are not unusual, and PayviaPhone-routed sites, where the charge can run to 15%. Hot Streak Casino charges 15% on Fonix deposits between £10 and £30. The fee is taken from the deposit, not added on top.

How safe is phone-bill billing for casino deposits?

Phone-bill billing is as safe as the licensed casino that processes it. The deposit flows through a regulated payment processor under the Payment Services Regulations, the carrier enforces the spending caps at the network layer, and the licensed operator is bound by the UKGC’s identity-verification, deposit-limit and vulnerability-check rules. A non-GamStop site that accepts pay-by-mobile is not covered by those protections, and that is the configuration where the safety question changes.

What is the minimum deposit when I pay by mobile?

The standard minimum is £10. Hollywood Bets and Mr Vegas both drop to £5 for phone-bill deposits, which is the lowest in the featured set. The phone-bill cap of £30 per single transaction is the ceiling regardless of the operator’s stated minimum, so the practical deposit range at most pay-by-mobile sites is £5 or £10 at the floor and £30 at the ceiling.

Does Boku still work at UK online casinos in 2026?

No. Boku is no longer directly available at UK online casinos, having been phased out since 2023. Fonix has taken the leading role as the replacement processor, offering background verification without the SMS one-time code that the Boku flow required. Siru Mobile and PayviaPhone remain in use at a smaller number of sites.

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