@Kmonty
How to unlock here Guide: Unlocking an O2 phone to use a different SIM card
Check with another sim to see if it is locked or not.
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)