Over a month ago we struck up a deal for a new X1. We agreed to part ex my car and agreed a value without actually having the part ex vehicle present, but comprehensively described it including a dent etc and the dealer marked accordingly on their sheet.

Last Thursday we bought the part ex in to show the dealer who seemed happy and confirmed the new car should be at the dealership on 20th Dec 2010.

Today, almost a week later the dealer has phoned and said he's going to offer £1500 less part ex value because the dent is worse than he thought (we had been extremely honest about the damage) and the new car won't be with us until 2011 so we'll have to pay 2.5% extra VAT.

We've paid £2,000 deposit and extracted our savings early to pay for the new car next week (so we've lost interest on our savings). We're happy to get our deposit back and walk away from the deal as we could probably buy cheaper online anyway!

Not happy. What's your advice? Thank you for your help!