Pay As You Go means you buy an O2 SIM card from us then top it up with the minutes, texts and calls that you need when you need them. You'll also unlock exclusive O2 benefits, like Priority.

Get all the information you need about Pay As You Go on O2 – from how to check and top up your balance to Bolt Ons, Rolling plans and using your phone abroad.

Feb 5, 2025 · With Classic Pay As You Go, you pay for what you use – as you go. Find out how to top up, check your balance, change tariffs and add Bolt Ons to your account.

May 6, 2024 · Learn how to activate an esim, and the difference between Pay As You Go and Pay Monthly. Our guide to sim deals will help you choose the sim that’s right for you.

Feb 5, 2025 · Add unlimited texts, minutes and data with our Big Bundle tariffs – discover the various Big Bundle options, how to join, and ways you can top up each month.

Feb 4, 2025 · Get all the information you need to top up your O2 Pay As You Go sim – including how to top up online and other ways you can add credit to your account.

We have amazing O2 SIM deals for pay monthly contract as well as pay as you go SIM offers.

Terms & conditions Mobile Pay As You Go Standard Rates (including Standard Plus / Ultra)

To get the International Monthly Bolt On for Pay As You Go, go to My O2 and browse the available Bolt Ons. Or text MONTHLYINT to 21300, or call 2202, both free from your O2 phone.

Top up between £10 and £30 online. You'll just need your mobile number and a credit or debit card handy. Your card will need to be from a UK bank and registered to a UK address. You can only top …