@TinaP20
If it's a replacement sim you need to do a sim swap Guide: Sim Swap: a mini guide 2017 update
If due to a loss, O2 will need to remove the bars from your account.
Guide: How to find help & contact O2
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)