Say you buy a new vehicle from your local dealership with zero percent financing. You complete all the paperwork, including the purchase order and vehicle registration, and leave the dealership owning the vehicle.

The next day, the dealership calls you and says there's been a mistake: You are not eligible for zero percent financing. To correct the mistake, the dealership asks you to return and sign a new contract with an interest rate.

Recognizing a good deal when you see one, you ... Log in to view full article.