on 27-10-2023 10:04
Can't long into app, say as a new customer it can take up to 48 hours, however, it's been a couple of months
on 27-10-2023 10:27
Can you log in online https://mymobile.o2.co.uk/ ?
If so, try deleting the app, rebooting your phone and then reinstall the app.
We’re just customers like you but it sounds like you’ll need someone to access your account which can’t be done from here. If you message O2 on Facebook (https://o2uk.co/O2CFB) , Twitter (https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG) , they should be able to help you with this
Thanks
Guide: How to find help & contact O2