24-02-2024 12:22
Both me and my mum cannot access our separate account and are having the same issue.
I tried logging and it would not let me so I changed my password and tried again but it came up with a message that my account isn't ready yet even tho I've had my account for a year and my phone number had changed so I could be separate from my mums... now it's saying my phone muber is not attached to my account (I don't know what account its attached to now for some reason).
I've been able to log into to it for a year now since I got it in February last year now for some reason it's not working
24-02-2024 12:30
Try online https://mymobile.o2.co.uk/
If using the app, try deleting, rebooting phone and then reinstall the app.
This is a customer to customer community, not O2.
You need to contact O2.
Message them on Social Media. Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG) or give them a call on 202 or 0344 809 0202 (contract) 4445 or 0344 8090222 (PAYG)
Unlikely that you'd get help in store, but may be worth a last resort try.