Liz Ferguson was successful in reaching a settlement for the harassment this caused. I too would have been and any person can do so as long as you have communicated with the other party enough to bring to their attention what they are doing wrong. The link to the case is http://nearlylegal.co.uk/blog/2009/02/the-gas-man-cometh.
In all Virgin Media are poor. I think they need to look hard at what they can do to improve the service offered to current customers and not focus on wooing new customers". (Click on "virgin media" label underneath for more sorry tales about Virgin Media and its dear leader)