Wow! I guess it wouldn’t help for me to say that you should have checked the vin on the paperwork with the vin on the car BEFORE you took it? Don’t want to kick you when you are down but that is a mess. It seems to me that you should definetely demand that they give you your money back. If they won’t then you should contact the attorney general for that state and whatever other consumer protection agencies exist in that state too. I’m really sorry for the hassles. I’m not a lawyer but you might consider taking them to small claims court if they won’t give you your money back and pick it up at your home.