You can get in touch with the Payment Management team using Skype as they have an 0800 number @KirstyF92
You can reach the Payment Management team on 0800 902 0217.
The opening times are:
Monday to Friday – 8am to 8pm
Saturday – 8am to 6pm
Sunday – 9am to 6pm
Call using Skype Guide: A Guide to Skype
Bit confused why you said phone stolen - unless that's why you don't have your sim.
Did you report it stolen?
Guide: Lost or Stolen O2 Device? - How to Report it
Please note, this is not customer services and we cannot access your account. Do not publish personal details (email, phone number, bank account).
Link to our guide on how to contact them can be found here
