Had my Virgin Media install yesterday, all is well, but my old supplier (TalkTalk) kit is still active.

Spoke to talktalk online and apparently it should be off by the end of the day and then they will send me the kit return bag.  Maybe there is a couple of days overlap to allow for any issues.  Better than when I first signed up to TalkTalk and we were left without internet for weeks due to all sorts of system errors - the compensation ended up paying for our internet for a full 18 months! 😄