<prompt> Human: So my wife bought a car earlier this week and the salesman just called saying he couldnt work the financing they agreed to on the paperwork and that she needs to come back and sign new papers for a higher rate. Its only a matter of tenths of a percent and will only raise the payment 9, but I was wondering if this is something they could actually do? Isnt the original paperwork essentially a contract and if the dealer cant commit to the terms, thats their problem and not ours? Any helpadvice is greatly appreciated. TL;DR: Wife bought a car and dealer wants her to come back and sign for a higher interest rate  <response>: In the future, never take a car home until the deal is done 100. They are trying to get you emotionally invested, and then jack up the cost. This is a pretty common tactic. Watch for a longer term used to keep the payments about the same. Also look for other changes. If it was me, Id return the car and ask for your trade-in and any payments you may have made back. They are being dishonest. Even if they decide to honor the original contract, do you really want to do business with this kind of dealer? Every time you have it serviced, you will wonder if they are screwing you. 