It will be automatically set up with the email address you used as the log in name. You will also be emailed a password but call cs if you don't get it sent to you.
Once logged in you can change the contact email address but your original email address will always be the one you have to log in with.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion.
This is not Customer Service so we are unable to help with account specific issues.Currently using:
Pixel 7a (O2 & Lyca), One Plus 6 (Sfr), iPhone 12 Pro Max (Vodafone)