Okay so it all began me wanting to sell my husbands 1956 Chevy Bel Air I posted an ad on craigslist and within an hour I was receiving calls left and right two guys who wanted to split the cost with each other showed up, he then put a deposit of $500 with a written letter saying so,they are coming tomorrow to pick it up, after some time went by I started to realize that we were selling the car way too cheap, so we then called the two guys back to tell them that my husband wanted to keep the car and because the price was too low ( a big mistake) once we talked to them telling them we wanted to back out of the deal they(we would refund their deposit) they then told us "that was going to be a problem" so my question is, is there anything we can do from here without having to basically give them the car for the very low price, If anyone can help please let me know Thanks !