Kendall Ford Meridian

Here's my Kendall Ford Experience I began the buying process online today and sent the the VIN and pictures of my trade to the salesman, to include pictures of the VIN. The tentative offer they made was good so I went to the dealer with my trade and they inspected it. Everything was good, we had the deal done, and I waited two hours for financing and then went in to sign the papers. We reviewed the deal again in the finance office, everything was good, so they began to print out the papers for me to sign. Then one of the sales managers comes into the finance office and says that he made an "egregious mistake". He quoted the trade in offer on the wrong vehicle and that mine was worth $15,000 less than what he offered. I provided them with the VIN of my vehicle to research before I even arrived at the dealership, they inspected my vehicle at the dealership and said everything was good, then two hours later when I'm about to sign the papers, he informs me of his "egregious mistake" and offers to "re-do the numbers" while telling me that my vehicle is worth $15,000 less than what they offered. Then he asked me if I really thought my vehicle was worth that much. This is a whole new level of scam that I haven't even heard of before. They had every opportuity to research my trade before I arrived at the dealership and while I was there. They didn't make a mistake with the offer. I would be careful when dealing with these guys and would recommend staying far away.