on 08-03-2024 15:50
I can’t login to my o2 as it says my mobile number is already registered to another account but it’s not my current email address so I can’t access it.
on 08-03-2024 15:57
Lots of people with this problem
Instead try the web version
https://accounts.o2.co.uk/signin
If that works then delete the app, reboot phone and reinstall
If none of that works then
You can call O2 on 202
Or use the social media links below
Message them on Social Media. Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG)