Credit & Debit Card Top-Up

Call the O2 Top-Up line FREE by using Hotkey 3 or dialling 4444 from your mobile phone. If you are calling from a landline call 08456 062 277 (calls charged at the local rate).

Have your Debit/Credit Card numbers ready and follow the simple step-by-step instructions. You'll hear a 'Top-Up successful' message when your calltime has been credited.

Cards you can use to Top-Up are Visa, Visa Debit, Visa Electron, Mastercard, Maestro and Solo.

You can Top-Up between £10 and £30 at a time.

We’re so confident you’ll love the convenience of the service that he first time you top-up this way we’ll give you 10% of your top-up (up to £3) completely free!* And the service just gets better as the next time you use the same card to top-up you will be able to use our Express service which is even quicker and easier. All of this without any need to register.

Important information – please take note

You can Top-Up £100 within a 30-day period.  But within a 24-hour period the maximum amount you can Top-Up is £30 (minimum Top-Up is £10). If you are topping-up with a Mastercard for the very first time, you are limited to topping up to £30 with your Mastercard within the first 30 days of use. After your first 30 days of use, you can use your Mastercard to top-up up to £100 within every subsequent 30-day period as usual.

You can have three cards registered to your mobile phone at one time or you can use one card to Top-Up two different mobile phones.

* The free calltime will be credited to your phone within 24 hours of your successful web Top-Up.