Thanks for this thread guys and the info it contains. The dealer told me to pay the PCP off after 3 months. Now I know why!!
Mine told me that I would need to wait a month or I'd lose the deposit contribution. Now I know he was telling porkies.
What he meant to say was that the dealership would lose their VWFS kickback.
Well if you were going to pay cash originally then they were never going to get that kickback. If you take out pcp to get VW's contribution and that is the only reason you are taking it out, then it is none of the dealer's business. If they suggest that you have to wait before you pay it off, then they are simlply lying, underhand, thieving barstewards.
I got my three letters this morning from VWFS (a week after pick-up,three days after withdrawal), one confirming my monthly payments, the second confirming my withdrawal and the third confirming my service plan.