All the phone numbers you need are in this guide @Martin39 - Guide: How to find help & contact O2
Should you decide to cancel, be aware that if you have a device plan it will need to be paid off as well as any remaining minimum term on your airtime.
Guide: Cancelling Your Contract
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 Do not publish personal details (email, phone number, bank account).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
