Everytime I try and log in it does work

[HarveyO]

Just doesn’t work when I use my details to log into the app and it’s been longer than 48 hours 

[pgn]

Could be that your account is being moved from the legacy to new back-end billing system, @HarveyO - should be sorted by tomorrow.

Could be a bug in your app - if this access works from a browser: https://accounts.o2.co.uk/ - then force-stop the app, uninstall, reboot the phone and reinstall from your device's app store.

If all else fails, reach out to O2 via Social Media, link just below has the details. Good luck! @