My o2 app

[Misteryoungz]

I can’t login to my o2 app

[SierraWhiskey34]

Possibly caused during the migration from O2's old system to new one.

If you get in touch with O2 they can sort it in the background. Ended up going in to O2 store today for same issue on my Mum's account.  Had called O2 on 202 and the answer I got was "she'll need to create a new email address and register it", not a viable option for a 75 year old who has enough trouble with 1 email address and phone number! Rep in store spoke to Customer Care who said it should be sorted in 5-10 days.  Turns out the merger put O2.co.uk email addresses against the new accounts and because the original address was still on the old system it wouldn't let you register it again, but it is fixable, don't be fobbed off.

[Oxonian]

@Misteryoungz

An O2 systems' update is causing misery for large numbers of customers.

Try accessing MyO2 online at https://mymobile.o2.co.uk/. 

If using the app, try deleting it, rebooting your 'phone and then reinstall the up to date version of the app.

If that does not work, you will need a new email address that has not been used on O2 previously.

You then need to contact O2. You can message them on social media :-

Facebook : https://o2uk.co/O2CFB

X (previously known as Twitter : https://o2uk.co/O2CTW

A complete schedule of ways to contact O2, including 'phone numbers, is at :-

Guide: How to find help & contact O2