Cancelled account

[Miahughes15]

I cancelled my account months ago and I am still having money taken out of my account on a monthly basis. 
The o2 sim is no longer active and the phone is no longer in use. 

[jonsie]

This looks like something you’d need to call O2’s customer service team about – give them a call on 202  or 0344 809 0202

Use the specific Payment management number  0800 902 0217

The opening times are:
Monday to Friday – 8am to 8pm
Saturday – 8am to 6pm
Sunday – 9am to 6pm

Guide: How to find help & contact O2 

Guide: Cancelling Your Contract 

[Bambino]

@Miahughes15 How did you cancel? Did you follow this guide?: Cancelling your contract - An updated guide - O2 Community

See this to reach O2: How to find help & contact O2: A Guide - O2 Community