I've given up on them.
For the past 6 months or so Virgin have been digging trenches and laying cables in the streets in my area (and causing chaos, I might add). Several times I have spoken to them and they ALWAYS say that they can connect me "by the end of next week" - they have been saying that for at least 2 months now. I, and several people in the area, have given up on them and are now trying to get get BT/Openreach to connect us to their FTTC service instead - one person has been successful so far. Me? I'm still waiting for BT and Virgin and having to exist on my 2Mb ADSL service :-(