I've had such bad experiences with Virgin Media that I've just made a site to try to inform other customers considering to go with them just how bad they can be. They seem incapable of doing anything correctly, and their customer service is terrible. If you've had bad experiences with Virgin Media, please support my site Avoid Virgin Media by linking to the site, commenting with your experiences or digging it.
Positive comments with regards to VM are also welcome if you can think of any!