You can not profit from the mistake by the dealer in not processing your credit card. Obviously it was not their intent not to charge you. It was a unilateral mistake. If you had made a mistake in addition and over paid them, would you accept their saying 'tough luck" and keeping the over payment? The law does not protect people with dirty hands; if they sue you, they will win and get their filing fees, you will have a judgment against you, and your credit rating will be effected. As to their not telling you about the prior damage, it does not appear that was willing on their part, so was not fraudulent, as they negligently failed to look in the glove box. You do not say how bad the prior damage was; contact the body shop to find out. If it was minor damage that would not likely have caused any frame or other permanent damage, you might get them to reduce the sale's price a little; if the damage was significant, then you could argue it was a mutual mistake of fact that might void the sale.
Answered on Sep 09th, 2015 at 12:49 PM