Craig,
I agree with the above comments, Found a deal for a VW on this website from a dealership in Oxford and was happy to go there to get the car sorted out (4 hour round trip for me), but thought i’d give my local dealership a chance. Cardiff VW was a flat no (with added grief for not supporting my local dealership).
Then tried Newport VW, they agreed over the phone to match the deal, no proof needed, and emailed confirmation agreeing discount. Currently waiting for it to be built……