26-12-2018 23:57 - edited 26-12-2018 23:59
@BrianB Please see this guide: https://community.o2.co.uk/t5/How-to-Guides/Cancelling-Your-Contract-A-Guide/ba-p/566774
If you need your phone unlocked, best to do it before you leave: https://community.o2.co.uk/t5/How-to-Guides/Unlocking-an-O2-phone-to-use-a-different-SIM-card/ba-p/1...
on 27-12-2018 00:01
Written notice isn't necessary. A simple call to 202, choose option for leaving O2.
on 27-12-2018 11:35
Hi @BrianB, I hope the replies above answered your question, but please let us know if there's anything else we could help you with
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