In future I would try posting your problem on the official Virgin Media Help forum.
I too had horrendous trouble with the Indian call centre - I could not understand them, they could not understand me, they kept "putting me through to faults" only for me to have to start again from the beginning... all soul destroying stuff.
I posted my issues on the Virgin Media forum, and both times within a couple of hours an official Virgin person had looked up my account, by using my login details I guess, looked into the problem and sorted it! Give it a try, I was well impressed! Here you go:
http://community.virginmedia.com/