on 28-06-2024 15:18
Hi, I have lost my O2 SIM. I want to cancel it because I realised I don't use it, but I can't without a verification code send to my number. Please can I cancel the SIM.
on 28-06-2024 15:22
You should report it lost as you will be liable for any calls or data used
Guide: Lost or Stolen O2 Device? - How to Report it
To cancel
Guide: Cancelling Your Contract