Virgin Media + The Money Club: I wanna be a telepest!

I've just had an interesting conversation with Virgin Media. My mother has been receiving calls from 0116 225 3841 for the last 3 days, each time the phone was answered, the caller would instantly hang up without saying a word, giving the impression it's actually an automated dialer.I traced this number back to Virgin Media, and duly called them, having tried to call the number itself (constantly