Phone Audi UK up and complain to them. I did when I was ignored in my local dealership, ever since then they go out of their way to ask anyone that comes through the door if they need any help.
I also made a complaint before I collected my current A5 coupe, when I signed for it the big boss man gave me his personal number and asked me to call him directly if I ever have any complaints, he said complaints made to Audi UK go against them and if they get a certain amount they get a visit to see what's going on!
Oh and when I bought the S3 I complained that it had a damaged alloy and they tried to fob me off with it, I then got a brand new R8 for the day whilst they put a new alloy on
You're paying out a lot of money, it doesn't matter if you're 19 or 90, you should be treated the same.