My O2

[MattWard]

I can’t access my O2 app. I have entered the login details but I get a message saying that my O2 isn’t available 

[Bambino]

@MattWard You need to speak to customer service.
Call 202 from your mobile or 0800 032 1402 from any phone or numbers here: Guide: Coronavirus Community Help and Support 
When it comes to the reason you are calling, stay silent for 15 seconds and you will be taken to the keypad options.
Press 2 for Everything Else
Press 5 for More Options
Press 7 for Anything Else which will put you though to someone.
Say 'Upgrade', 'Lost/Stolen', or 'Fraud' if the suggestion above doesn't get you through.
Best time to call is 8 am.
You can also reach O2 via social media:
Facebook (https://o2uk.co/O2CFB), Twitter (https://o2uk.co/O2CTW), or Instagram (https://o2uk.co/O2CIG)
Or you can call them on 0800 081 0255

[pgn · Accepted solution]

Can you access MyO2 by browser, @MattWard?

https://www.o2.co.uk/myo2?error=notCellularNetwork

If so, then an install and reinstall of the app on your phone may fix it, otherwise it means a call to O2 - the Social Media team links below this post will help there. Good luck.