Log in on this link to take you to the page in your MyO2
https://mymobile.o2.co.uk/paymonthly/bills?disambiguation_id=dd8eeaf2-4ec0-4011-8966-3df61d33d947#/b...You will need your mobile with you to set up a PIN the first time.
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)