Payment protocol: carrier billing
Pay by Mobile Casino in the UK 2026
phone bill deposits, explained
A pay by mobile casino in the UK charges deposits to your phone bill through carrier billing — no card, no bank login, one SMS confirmation. This page covers which networks support phone bill deposits, how Boku works on each carrier, the £30 daily cap, and the withdrawal catch that most comparison pages skip.
Best pay by mobile casinos in the UK
| Brand | Load (LCP) | Weight | Store rating | Licence | Action | |
|---|---|---|---|---|---|---|
 | 01 Grosvenor Casinos | 3.32s | 4.9MB | A:4.2 G:4.5 | UKGC | Visit site |
 | 02 PlayOJO | 4.68s | 3.7MB | A:4.4 G:4.3 | UKGC | Visit site |
 | 03 888casino | GEO-FENCED | GEO-FENCED | A:4.5 G:4.9 | UKGC | Visit site |
 | 04 LeoVegas | GEO-FENCED | GEO-FENCED | A:4.5 G:4.7 | UKGC | Visit site |
 | 05 Videoslots | GEO-FENCED | GEO-FENCED | NO APP | UKGC | Visit site |
 | 06 Casumo | GEO-FENCED | GEO-FENCED | A:4.2 G:4.5 | UKGC | Visit site |
 | 07 Mr Vegas | GEO-FENCED | GEO-FENCED | NO APP | UKGC | Visit site |
ALL LISTED OPERATORS: UKGC-LICENSED · PERFORMANCE COLUMNS: MEASURED (method) · CARRIER-BILLING SUPPORT: CONFIRM IN OPERATOR CASHIER BEFORE REGISTERING
The ranking carries the same measured columns as every table on this site — lobby render time on throttled 4G, app weight, store ratings — because a payment method doesn't excuse a slow product. Payment support changes at the operator's discretion, so treat the cashier page as the final word on whether phone-bill deposits are live that week.
Mechanism
How carrier billing works: phone bill deposits explained
Behind every pay by mobile deposit sits a carrier-billing intermediary — in the UK, overwhelmingly Boku. The casino never talks to EE or Vodafone directly; it sends the charge request to Boku, Boku texts your number, and your reply authorises the charge. The casino credits your balance the moment Boku confirms, which in practice is seconds.
On a monthly contract the amount appears on your next bill, itemised as a purchase. On pay-as-you-go it comes straight off your credit. Nothing about the transaction involves a bank, which is exactly why the method has a hard ceiling: with no credit check behind it, UK networks cap carrier billing at £30 per day, a limit inherited from the Payforit scheme and enforced across all merchants combined.
The Payforit name itself is mostly gone — the networks retired the joint scheme around 2020 — but its consumer protections survived inside the providers that replaced it. If a casino advertises Payforit today, it is describing Boku-style billing under the old label.
Deposit sequence
- 01 Open cashier → select Pay by Mobile / Boku
- 02 Enter amount (£5–£30) + mobile number
- 03 Receive SMS from carrier-billing provider
- 04 Confirm by reply or tap
- 05 Balance credited — charge lands on next bill
Total time in our deposit walkthroughs: under 60 seconds from cashier to credited balance on all four major networks.
Network matrix
EE, O2, Vodafone and Three
All four UK networks support gambling deposits by carrier billing, with identical caps but different failure quirks. EE and O2 process confirmations fastest in our walkthroughs; Vodafone occasionally requires enabling “charge to bill” in its app for first-time gambling merchants; Three blocks carrier billing entirely on some legacy business tariffs. Virtual networks inherit their host's behaviour — giffgaff follows O2's rules, Tesco Mobile likewise on O2, and Sky Mobile follows O2 since its 2024 migration.
One deliberate exclusion applies across every network: carrier billing cannot fund gambling on accounts registered to under-18s, and networks maintain their own opt-out registers. If you have ever enabled adult-content or spending blocks with your carrier, those settings override anything the casino cashier claims to support.
Constraint analysis
Limits, fees and the £30 cap
The £30 daily ceiling is the method's defining constraint, and it is per phone number, not per casino. Two £20 deposits at different sites in the same day: the second fails. The cap resets on the network's daily cycle, and no operator, VIP tier or support agent can raise it — the limit lives at network level.
Direct fees are zero: deposit £20, pay £20, receive £20. The costs are structural instead. Carrier-billing transactions are more expensive for operators to process than card payments, which is why a handful of casinos exclude them from welcome bonuses, and why you will never see carrier billing offered for withdrawals. Minimums run £5 to £10 depending on the site, which makes phone-bill deposits the natural fit for the small-stakes slots session rather than table-game bankrolls.
Critical path warning
Withdrawals: the catch nobody explains
Carrier billing is a one-way pipe. Money moves from your phone bill to the casino, never back. There is no technical mechanism for a casino to credit your phone account, so every pay by mobile casino in the UK requires a second withdrawal method — typically bank transfer, an e-wallet, or a debit card registered after KYC.
The practical consequence: your first withdrawal takes longer than at a card casino, because you are registering and verifying a payout method from scratch at that moment. The fix is cheap — register your withdrawal method right after signup, before you need it. UKGC rules require winnings to be paid to a verified instrument in your own name, so the days of “winnings to a mate's PayPal” are gone regardless of deposit method.
If withdrawals matter more to you than deposit convenience, the Apple Pay and Google Pay routes solve the same no-card-details problem while pairing naturally with faster payout rails.
Compliance layer
Safety, licensing and who this suits
Every operator on this page holds a UK Gambling Commission licence — verify any of them in the UKGC public register before depositing. Be precise about what the payment method does and doesn't protect: pay by mobile keeps card and bank data away from the casino, but the casino still runs full identity verification, and the licence — not the payment rail — is what makes your funds recoverable if something goes wrong.
A red flag specific to this niche: sites advertising “pay by phone, no verification” or carrier-billing casinos “not on GamStop”. Those are unlicensed operators marketing the absence of player protection as a convenience. No UKGC casino skips KYC, and every UKGC casino is on GamStop by law.
Who the method genuinely suits: players who want small, self-limiting deposits with nothing to type, PAYG users without cards, and anyone treating the £30 cap as a built-in budget. Who it doesn't: anyone chasing larger sessions or fast, frequent withdrawals.
Player protection
Responsible gambling with carrier billing
Phone-bill deposits have a specific risk profile: the money is invisible until the bill arrives. The £30 cap contains the damage per day, but a month of daily caps is £900 on a phone bill. Set casino deposit limits below the carrier cap, check your itemised bill monthly, and use your network's own spending controls as a second layer. GamStop self-exclusion covers every site on this page; support is free at GamCare (0808 8020 133) and our resources page. 18+.
Query log
Frequently asked questions
What is a pay by mobile casino?
A pay by mobile casino lets you fund your account by charging the deposit to your phone bill or prepaid credit instead of using a card. You enter your mobile number, confirm a text message, and the amount is added to your next bill. No bank details ever touch the casino.
How does depositing by phone bill actually work?
The casino passes your deposit request to a carrier-billing intermediary — Boku is the dominant one in the UK. The intermediary sends an SMS to your number; you reply or tap to confirm, the casino credits your balance instantly, and the charge appears on your next monthly bill or comes off your pay-as-you-go credit.
Which UK networks support casino deposits by phone bill?
EE, O2, Vodafone and Three all support carrier billing for licensed gambling, along with most virtual networks that piggyback on them, such as giffgaff on O2 or Tesco Mobile. If your network runs on one of the big four, pay by mobile will usually work.
What is the deposit limit for pay by mobile casinos?
UK carrier billing is capped at £30 per day across all merchants — a Payforit-era limit the networks kept. Individual casinos often set a £10 or £20 per-transaction ceiling within that. The cap is per phone number, so two £20 deposits in one day will fail even at different casinos.
Can I withdraw winnings to my phone bill?
No — this is the catch most pages bury. Carrier billing is one-directional: money can flow onto your bill but never back. Every pay by mobile casino requires a second registered method, typically bank transfer or an e-wallet, for withdrawals. Factor that in before choosing the method.
Are pay by mobile casinos safe and legal in the UK?
The method itself is regulated payments infrastructure, and every casino listed here holds a UK Gambling Commission licence you can verify in the public register. The usual safety rule applies: the licence makes the casino safe or unsafe, not the payment method.
Is Boku the same as pay by mobile?
Boku is the largest carrier-billing provider, so “Boku casino” and “pay by mobile casino” overlap almost completely in the UK. Payforit was the networks’ joint scheme branding, largely retired since 2020 with its rules absorbed into services like Boku. If a casino lists Boku, it supports phone bill deposits.
Are there fees for depositing by phone bill?
Casinos and Boku charge the player nothing directly — a £20 deposit puts exactly £20 on your bill. The cost is indirect: carrier-billing deposits are sometimes excluded from welcome bonuses, and the method’s processing fees are priced into the casino’s side.
Can I deposit with pay by mobile on pay-as-you-go?
Yes. On PAYG the deposit is deducted from your topped-up credit immediately instead of appearing on a monthly bill. If your credit balance is below the deposit amount, the transaction is rejected — there is no overdraft on prepaid credit.
What is the minimum deposit at a pay by mobile casino?
Most sites accept £5 or £10 as the minimum for carrier billing, and £5 minimum deposit offers are a common entry point. Combined with the £30 daily cap, the method suits small-stakes play by design — which many players consider a feature rather than a limitation.
Do pay by mobile deposits qualify for casino bonuses?
Usually yes at UKGC casinos, but check the bonus terms: a minority of operators exclude carrier billing from welcome offers the same way many exclude certain e-wallets. The exclusion, where it exists, is always stated in the significant terms below the offer.
What happens if I hit the £30 daily cap?
The transaction is declined by the carrier, not the casino, and no charge occurs. You can either wait until the cap window resets or deposit through another registered method. The cap cannot be raised — it is set at network level for all UK carrier-billing merchants.
Does pay by mobile work on contract and business phones?
Personal contracts, yes — charges appear as “purchases” on the bill. Business accounts and some family plans block premium and carrier-billing charges by default, and the account holder can toggle this with the network. If a deposit fails repeatedly, that block is the usual reason.
Is pay by mobile more private than using a debit card?
From the casino’s perspective yes: it never sees card numbers or bank details, only your phone number. Your network’s bill will still itemise the charge, and the casino still runs full KYC identity checks — the privacy gain is about payment data, not anonymity.
Why did my pay by mobile deposit fail?
The common causes, in order: the £30 daily cap is already used, carrier-billing is blocked on the account, prepaid credit is insufficient, or the SMS confirmation timed out. Failed carrier-billing deposits never charge the bill — if you see a charge without credited funds, contact the casino with the SMS timestamp.
Which is better: pay by mobile, Apple Pay or Google Pay?
Pay by mobile wins on simplicity and works without a bank card, but caps at £30 a day and cannot withdraw. Apple Pay and Google Pay clear larger deposits, qualify for more bonuses, and pair with a card that can sometimes receive withdrawals. Regular players usually outgrow carrier billing; occasional small-stakes players rarely need to.