Last updated: 01-06-2026
Pay by phone is the only deposit method in UK online casinos that requires no bank details, no card number, and no e-wallet registration. You deposit using your mobile number and the charge appears on your next phone bill or is deducted from your prepaid credit. For players who want to keep gambling spend separate from their main bank account — or who simply don't want to enter financial details online — it's a genuinely useful option. The limitation is equally clear: deposits are capped at £30 per transaction at most UK operators, making it unsuitable as a primary funding method for regular players.
Kong accepts pay by phone deposits via Boku and Payforit — the two dominant providers in the UK market. Both use the same underlying mechanism: you enter your mobile number, receive an SMS confirmation code, enter it on the deposit screen, and the charge is applied to your phone account. No registration with a third party is required beyond owning an active UK mobile contract or prepaid SIM.
Author's tip from Caleb Whitmore, Senior Online Casino Reviewer: "Pay by phone is the method I recommend to players who are testing a new casino for the first time. The £30 deposit cap functions as a natural session limit — you physically cannot over-deposit through this method. If you're trying Kong for the first time and want to set a hard ceiling on your first session, pay by phone achieves that without requiring you to configure deposit limits in account settings. It's the method's greatest practical strength for responsible play."
How does pay by phone casino work at Kong?
The mechanism is straightforward. At the Kong cashier, select Boku or Payforit from the deposit method list. Enter your UK mobile number. Kong sends an SMS containing a 4–6 digit verification code to that number. Enter the code on the deposit screen. The deposit is processed instantly and added to your Kong balance. The equivalent charge appears on your next monthly phone bill (contract) or is deducted from your prepaid credit balance immediately.
Prepaid vs contract. Both work. Prepaid (Pay As You Go) deducts from your available credit at the moment of deposit — you need sufficient credit on the SIM. Contract (monthly billing) adds the deposit to your next invoice. Your network provider must support premium SMS billing — all major UK networks (EE, O2, Vodafone, Three) do. Some virtual network operators (MVNOs) do not support it; check with your provider if the payment fails.
Why withdrawals aren't available via phone bill. Pay by phone is deposit-only. Withdrawals cannot be processed to a phone bill — there's no mechanism for a network operator to credit money to a mobile account from a third party. Withdrawals from Kong must use a bank card, e-wallet, or bank transfer. This is a regulatory and technical constraint, not a platform decision.
| Provider | Min Deposit | Max Deposit | Speed | Bonus Eligible | Withdrawal | Notes |
|---|---|---|---|---|---|---|
| Boku | £10 | £30 | Instant | Check offer T&Cs | ✘ Deposit only | All major UK networks |
| Payforit | £10 | £30 | Instant | Check offer T&Cs | ✘ Deposit only | EE, O2, Vodafone, Three |
Is the pay by phone deposit eligible for the Kong welcome bonus?
This is the most important question for new players using pay by phone. Bonus eligibility for phone bill deposits varies by offer and is not guaranteed. At Kong, check the specific terms of the welcome bonus before depositing — the offer page will specify which payment methods qualify. If phone bill deposits are excluded from the welcome offer, your first deposit via Boku or Payforit will fund your account but will not activate the bonus.
Why phone bill deposits are sometimes excluded. Some operators exclude Boku and Payforit from bonus eligibility for the same reason Skrill and Neteller are excluded — the method creates a layer between the player's primary financial identity and the deposit, which affects source-of-funds verification under UKGC responsible gambling requirements. This is not universal — some operators do allow phone bill deposits to qualify for bonuses. Verify before depositing.
No deposit free spins. If Kong has an active no deposit free spins offer, this is triggered by registration rather than deposit method — pay by phone eligibility is irrelevant for no-deposit offers. You can use pay by phone to top up after claiming the no-deposit offer without affecting the original bonus status.
| Offer Type | Pay by Phone Eligible? | Action Required | Notes |
|---|---|---|---|
| Welcome Bonus | Check T&Cs | Verify before depositing | Varies by offer — not guaranteed |
| No Deposit Free Spins | Yes — no deposit needed | Register account | Payment method irrelevant |
| Free Spins (deposit) | Check T&Cs | Verify per offer | Same rules as welcome bonus |
| Reload Bonus | Check T&Cs | Verify per offer | Often same exclusions apply |
Pay by phone limits — the £30 cap and what it means for your session
The £30 per transaction cap is a regulatory ceiling set by UK network operators, not by Kong. It cannot be increased by contacting support or by any account setting. It applies per transaction — some players attempt multiple sequential £30 deposits, but operators typically impose a daily limit (commonly £30–£90) to prevent circumvention of the cap.
Monthly billing limits. In addition to per-transaction caps, UK networks impose a monthly aggregate limit on phone bill purchases — typically £240 per month across all premium SMS charges, not just gambling. If you use Boku or Payforit across multiple services, this aggregate limit applies to your total usage.
What to use instead for larger deposits. Visa and Mastercard debit cards allow deposits up to the platform maximum (typically £5,000–£10,000 per transaction at Kong). PayPal offers instant deposits up to £5,000. Bank transfer handles higher amounts with 1–3 business day processing. For regular play above £30 per session, phone bill deposits need to be supplemented with a card or e-wallet.
Pay by phone vs other deposit methods — which is right for you?
Pay by phone serves a specific use case well and is poor for others. The decision comes down to session size and whether you have a bank card available.
- Use pay by phone if: you want to test Kong with a capped first deposit (£30 max), you're on a strict budget and the natural ceiling is useful, or you prefer not to enter bank details on a new platform before verifying trust.
- Don't use pay by phone if: you need to deposit more than £30 per session, you want to maximise the welcome bonus (which may require a larger qualifying deposit), or you need a method that also supports withdrawals.
- Best combination: first deposit via pay by phone to test the platform, then add a Visa debit card or PayPal for subsequent deposits and all withdrawals.
18+ only. Pay by phone's £30 deposit cap makes it one of the few deposit methods with a built-in session limit. If you find yourself trying to work around the cap by making multiple deposits, that's a useful signal to use Kong's deposit limit tools in account settings instead. New to Kong? Log in or visit the homepage to get started.
Author's tip from Caleb Whitmore, Senior Online Casino Reviewer: "The most practical use of pay by phone at Kong is as a bridge method — use it for your first £30 deposit to verify the platform works for you, then add a Visa debit card for everything after. This way you've verified withdrawals work, KYC is cleared, and you have a higher-limit method ready. Never use pay by phone as your only deposit method if you intend to claim the welcome bonus — the £30 cap may not meet the minimum qualifying deposit and the method may not be bonus-eligible anyway."
