App

[Disappointment]

App never worked. 

[Disappointment]

Haven't been able to log into app for years, will activate in 48 hours is the message I receiving all the time. And is impossible to find any support as just been kicked around... 

[pgn]

The app is known to be buggy at times, but you should be able to login to MyO2 using any browser at https://accounts.o2.co.uk/signin

If browser login works, uninstall the app from your handset, reboot and reinstall, see if that helps. Otherwise reach out to O2 via Social Media using the link just below for help, @Disappointment.