on 12-01-2021 17:29
on 12-01-2021 17:48
Check if your old sim still works.
If so the new sim isn't activated and you can use your old one, or do a sim swap Guide: Sim Swap: a mini guide 2017 update
on 12-01-2021 17:52
on 12-01-2021 17:53
on 12-01-2021 17:56
on 12-01-2021 17:56
Have you signed out of iCloud on your iPhone?
on 12-01-2021 18:02
on 12-01-2021 18:44
on 12-01-2021 18:44
Try the tips here before calling O2 to check your account Guide: Text Message Tips (not sent or received)
on 13-01-2021 22:41
on 14-01-2021 12:11
on 14-01-2021 12:11
Please note, this is not customer services and we cannot access your account. Do not publish personal details (email, phone number, bank account).
Link to our guide on how to contact them can be found here