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)
Hi, Superleeds, If you sign into a desktop or tablet on www.o2.co.uk/myo2 and select 'bills & current charges from the choices next to your number, a drop down menu will appear, select manage you payment details, you can change it there.