I'm in exactly the same position, fortunately VM is not available where I am moving to. I spent two days waiting on a reply to my message- their "preferred" method of contact, the phone service to report a house move has been disconnected "due to Covid19", there are no email addresses to contact anyone and no business addresses to be found anywhere. It is appalling customer service. I suppose they'll find out when the direct debit is not paid but that seems a very unsatisfactory way to deal with this.
Finally managed to get through then put through to an Indian call centre?
There is no service at the new property, 13 months left on the broadband contract, they are telling me that the disconnection fee is £240. my contact with phone is £27, this seems an excessive amount, is it correct?
That does seem excessive. I understood that if you cancelled as a result of moving home and you couldn't take VM with you then they would waive the cancellation fee. I can't imagine how you'd get out of that tho.