MyO2

[Liz22]

I can not log into my O2

[pgn]

If the MyO2 app is not working for you, @Liz22, try using a browser to access https://accounts.o2.co.uk/signin - if that also fails, then it could be because your account is being moved from the legacy billing system to the new 360 system, and things will be a bit odd until that migration completes, usually after 48hrs. Note you would benefit from uninstalling the app, rebooting the phone, and reinstalling the app from your phone's app store after the move completes. 

If neither works, contact O2 via Social Media using the link just below - persevere with any of Facebook or X or Instagram until you get a response, then use the platform's Direct Message system to work with O2 until fixed. Note that posting your account details openly on Social Media is, like posts here, openly visible to anyone... always use Direct messages for sharing phone number or other account details. Good luck, @Liz22.