@mark504
Complaining to OFCOM won't get you a response as they do not deal with individuals.
I assume you read this when articulating your position via Resolver :-
How to Complain | Help | O2
https://www.o2.co.uk/how-to-complain
You now need to look at :-
Customer+Complaints+code+250523.pdf (o2.co.uk)
https://www.o2.co.uk/documents/456036/4246828/Customer+Complaints+code+250523.pdf
In particular :-
What happens next?
If you’re not happy after we’ve responded to your complaint, or if your complaint isn’t resolved after eight weeks, you may wish to refer your complaint to an Ombudsman. The Ombudsman is a free service, which will independently review your complaint. They investigate complaints fairly by listening to both sides of the story and looking at the facts. Their decision is binding on O2, but not on you as a customer.
O2 work with two Ombudsman service providers, depending on what your complaint is about. When you speak with our complaints team, we’ll make sure that if you remain unhappy you’re provided with a final position letter, which will detail what we’ve done and advise you which Ombudsman you should contact.
As @pgn has said, you now need to start drafting you escalation to the Ombudsman. Please ask again if you need further help. 👍
