i need to change my phone number over to another sim card, but i couldnt access my account in the O2 Shop because the answer was wrong on the security question. i have the new sim card here now but need my number transferred onto it.
or login to your MyO2 and change your security question and answer under "My Details"
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.