You might be able to change it yourself after logging into your account @Teganlouiserose
If not, you need to call O2.
You can get in touch with Payment Management team on 0800 902 0217
Payment Management opening hours:
Monday to Friday – 8am to 8pm
Saturday – 8am to 6pm
Sunday – 9am to 6pm
Guide: How to find help & contact O2
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 Do not publish personal details (email, phone number, bank account).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
