Have finally got a result!!!
Dealer told me that I had missed the deadline for having it fitted as a factory option, he then said he could supply me with one fitted at the dealers for £830 (Bargain!!, NOT).
So I decided to go down the route of spitting my dummy out, I said could he look into me cancelling my order, then I would immediatly re-order the same spec with the 510 upgrade, I said I didnt mind going to the back of the queue as far as to waiting for the car to be delivered (he doesnt know Im actually counting the hours and the wait is killing me).
He has now rung me back and said to to save all the messing about he will fit a new 510 from another new car into mine for the same price as the factory upgrade.
Cheers from
A happy 2009 GTI, 3 door, Metallic back, 18" shadow alloys, AND RCD510 soon to be owner.