Old email address

[BobBS4]

The email address you have given me as the login ID is no longer in use - how do I update to my current email address.

[pgn · Accepted solution]

Either call O2, or if you can login, change it yourself: 

Changing your email address FAQs

If you're in the My O2 app, go to 'Manage your account', 'View all' and then 'Manage my details'. Select 'Change my username' under 'Sign in details'. You'll be sent a code to your phone. You'll then be able to change your email address.