I have finally decided to switch to BT for a much faster and much cheaper deal. Having been with Virgin for twenty years I find I am being charged more and more every year and am sick of paying a loyalty penalty for a service which is not very good. (Box needs re-booting at east twice a week at the moment although that is not why I am leaving).
Anyway, how do you tell them you are leaving. There is a premium line number with an asterix directing you to 34 pages of call costs for you to waste even more time on. Otherwise I suppose you can write them a letter. Or I could just stop my Direct Debit.
In any event they seem determined to make it as difficult and as time wasting as possible for you to leave.