It is recommended that you phone VM to cancel, but this is what is on my latest electronic contract:
"Alternatively, please print this contract form and write CANCEL across the front and send it to: Virgin Media, Winnall Down, Alresford Road, Winchester, Hampshire, SO21 1FP."
Disclaimer - I don't work for Virgin Media. I'm just another VM user trying to help out so my answers may be wrong If my answer solves your problem please mark it as helpful as it may help others My setup: Vivid 200 Optical fibre with Superhub 2 in modem mode connected to a Netgear R7000 router. Telewest/VM user since 2001.