Not with Plusnet, but I've completed a move from one Wholesale Line rental and calls service to another (not LLU Talk as offered by TT and Sky). The move is completed on an order from your new talk provider to OpenReach and in my case was ordered and committed (all automatically) by OpenReach within one hour of the web order from me to my new provider: the transfer then took place on the 14th day thereafter (due I believe to slamming rules, you should receive a letter from your loosing provider to confirm this).
The actual transfer took place at about 3am, and I received a prompt e-mail to my ordering address from OpenReach to confirm it had taken place. Painless.
I had to move my talk service only, and the broadband stayed with the same provider with no interruption (although once the talk service was up and running I then ordered a broadband move). With most wholesale providers like Plusnet you can move talk and broadband together, in those cases the broadband will move first followed by the line/talk.
No-one was ever convinced by what I said, but by what they understood.
Edited by smurf46 (Mon 29-Aug-11 10:44:23)