Hope you feel better...

I can understand what you feel.

I had the same situation before. I agreed the dealer's price and signed the paper. My mistake was I signed the paper with some boxes empty. Then the dealer left to let his manager to sign the paper. When the paper got returned, the manager filled those boxes. I did not check carefully at the dealership, When I returned the home, prepared for the money, I found the manager add $300 sales commission to the paper.

I called the dealer, and manager, also the owner. But they refused to correct, and insisted I have to pay whatever I signed. The manager told me "you can not do anything, you have to pay whatever you signed. Even a lawyer can not help you."

I was very frustrated; I blamed myself for careless, and stupid. But thanks for my coworker. His wife is an attorney. She told me there is a law in MA. I can cancel any deal within 3 days. She told me where to get the form, and helped me to cancel the deal.

Even the deal got canceled, the dealer refused to returned $500 deposit check back. She told to void this check. So I paid $20 to void the check. I bought a car from another dealer, the price was similar.

Some times it is not about the money, the feeling of being cheated and abused is very very bad. I remember even though I cancel the deal, it still affected me for quite long time.

Hope you get better.