Ultimately if you don't like the dealer that's one thing but to lock yourself out of a quality brand because you won't pay £485 (and trust me you can get it done for half that if you want...) to have the car fixed?
That's like my Dad who refuses to use Halfords because this one time they did something wrong.
He's making his own life harder by not using a local store that has in stock what he needs. Same thing for you, now you're moving away from a brand you're comfortable with (and probably going to end up getting a worse car.. Focus or a Civic, really?)
While I ultimately had my wings done FOC as I paid for other bodywork, while the BODYSHOP were crap the woman from VW who I was dealing with was very friendly all things considered and did check up regularly...
You see, it's not just that one thing. It's a myriad of issues.
Including, but not limited to;
Being told not to set foot back in a dealership - because I changed my mind on a purchase.
Having my car broken by a dealer and being told they would not fix it and it was not their fault.
Being lied to about finance.
Being told I'm not a valued customer.
Being basically told "Sorry sir, go elsewhere then" by VW UK (NOT THE DEALER).
Having my recommend a friend bonus rejected on numerous occasions for unexplained reasons (£100 voucher). I've sold 3 cars for VW to 3 friends.
Finally, although I'm GTI mad, I think the term "quality" is over used. No VW I've ever owned has been quality. They just look great and are refined. Quality? No.
Overall it's not about £250. It's the principle and more than anything it's being told I'm not a valued customer. They weren't saying that when I was handing over £16,500 for a 61 plate Polo SEL TSI. Arrogant, greedy fools.