They will be referring you for identity checks to ensure it's not fraudulent activity against you. It's not usual for 3 contracts to be requested at the same time so it's for your safety as much as O2's. Once they are happy with your application they will clear down the request and release your contract.
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)