It's an authorisation code used by O2 to verify your identity.
If you have not requested this or been in contact with O2 about your account, please call customer services immediately to report it.
http://www.o2.co.uk/contactus
Previous thread here too https://community.o2.co.uk/t5/Discussions-and-Feedback/OTAC/td-p/1119171
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.
Please select the post that helped you best and mark as the solution. This helps other members in resolving their issues faster. Thank you.
