Joining and leaving O2
Help and support
Joining and leaving O2
Information on joining O2, keeping your number, and how to cancel your account
How to disconnect your non-O2 number
If you’ve joined us and want to ditch your old number, here’s what you need to do
Keep your mobile number
Bringing your existing number to O2
Leaving O2
We don’t want you to go, but if you do, here’s what you need to know
Pay As You Go contract summary and contract information documents
The legal stuff about your Pay As You Go account
Pay Monthly contract summary and contract information documents
The legal stuff about your Pay Monthly account
Unlocking an O2 mobile to use on a different network
If your device is locked, unlock it free of charge
