I didn't post here to try and resolve the issue. I posted here to make people aware of my experiences with Coms.
I called this morning and pressed "3" for "accounts and billing".
I spoken to a kind lady who advised me that she couldn't help and that I would need to email the billing department.
But, I thought I had been put through to "accounts and billing"?
Anyway, I didn't have time to start writing emails and trying to explain the error as I was at work. Not only that but it would've been so much easier to sort the issue out over the telephone.
I was then put through to billing.
Richard kindly resolved my issue.
I was indeed being charged for a period for which I had already paid.
Not only that but I was being charged at an inflated rate for a service I didn't even have.
These things happen. But they have happened half a dozen times in the last 2 months, which is something I never expected.