Sorry to hear about your despair, Andy.
This is my first new VW, and my dealership so far (even with small issues) have been brill. Though, maybe thats because I said to them that I'll be back next year to buy my wife a new Polo...?!!
My local dealerships (Mansfield and Daybrook, Notts) didn't even phone me back after I left them messages informing them that I will be buying a new GTi, which I found odd.
But VW Parkway (Derby) were, and so far are, brill.
I bought my last new car from Nissank, and they were dreadful (sales, aftersales and servicing). In fact, they actually forgot to add engine oil during one service, the most basic of things, but were happy to tick their sheet !
Red