Ending Contract online completely

[NaomiL]

I need to end my contract, I've attempted to send emails for the past two months, and got nowhere. How do I end my contract online? I can't hear on the phone at the moment, so have to do it online. I am not going to another provider, I just don't need that phone any more. Thank you for your help. 

[pgn]

Guide: Cancelling Your Contract should help.

Social Media links in here also may be helpful for advice: Guide: How to find help & contact O2 

Good luck, @NaomiL