Unable to log into My o2 . Says my mobile is already used on another account

[Bbvr]

Unable to log onto My O2 , it’s sends me a code to enter then tells me it’s already associated with another number . Says try another number for the account . I don’t have another number 

[Enlli]

There is a few people that seem to have this problem.

You will need to contact O2.

Message them on Social Media. Facebook (https://o2uk.co/O2CFB) , X Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG) 

Or phone them on 202 or 0344 809 0202 (contract) 

4445 or 0344 8090222 (PAYG)