Occasionally things get lost in the system.
Try a non O2 sim in your phone anyway as it may have been processed. If not call 202 and ask CS to check the status for you.
You will need an EE, Voda or Three network sim to complete the unlock.
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)