As a virgin media customer, I can only wish you luck,
It took a while but eventualy they managed to sort out the few problems that I had. i.e. underground cable left 3 feet in the air, in coils, the team forgot to bury it.
Cutting off my broad band service because it was making a noise in their box? (still not very sure of that one).
Having to re-route the cable around the house, because my socket was in the wrong place.
Ground to hard to dig into, so concrete over the bright green cable protection, and hope no one notices. ,
The old saying of the grass is not always greener on the other side springs to mind,
But as I say they have sorted me out, it just seemed to take for ever....
Good Luck....