Cancelled contract but keep getting billed

Cancelled contract but billing continues I cancelled my contract (received confirmation on 2nd and 20th August 2018) - the number stopped working on 1st September as per contract. I continue to be billed though and when I questioned this I was told the contract was not cancelled. No-one can explain why or what is outstanding. But on the 2nd November I received a cancellation confirmation so evidently everything was in order all along. Is this just a clever way to carry on billing loyal customers and then just stop responding when I question why I have not received a refund. Surely the terms of the contract should protect me and allow me to get back money "de-*****ed" without authority from my account? I would appreciate an actual resolution to my problem.