My o2 app not working on phone

[Harry3]

Hello. I've moved onto a pay monthly contract with o2. I can access the My O2 portal on the laptop but when I try to login on my phone on the app I get the following error message:

"Unable to resolve host "myo2mw.o2.co.uk": No address associated with hostname"

Has anyone encountered this/ know what I can do to fix it please?

[Cleoriff · Accepted solution]

@Harry3 

Try deleting the app and reinstalling. If that doesn't work you need to contact O2 to reset your account

All numbers here Guide: Coronavirus Community Help and Support 

The number ending in 4005 seems to get the best results.

[Harry3]

That worked - thank you.

[Cleoriff]

Good to hear @Harry3