22-06-2024 01:55
22-06-2024 07:21
Make sure your SIM card is inserted correctly and is clean, @Garet - otherwise Guide: How can I sort out my network issues? may help.
If your payments have not been made, you will need to contact O2 to settle and you will be reconnected: Guide: How to find help & contact O2
Good luck!
23-06-2024 11:26
Depending on the problem that you are having and the reason for it, a trip to your local O2 retail store might - or might not - be a constructive way of addressing it :-
Store locator | O2 UK | Find Your Nearest O2 Store
It is an option. If you decide to visit, please remember to take photographic identification (photo ID) with you. 👍