i bought a car and received a bill of sale…when i went to make a payment on the car they wrote the amount i had paid on the contract and gave me a copy…..on they copy of the contract was a total different set of numbers and the cash i had put down was not on it…on the bottom where the signature goes was NOT my signature it is obviose that the owner had written it in..now we are trying to trade in the car and the numbers don’t add up and he is trying to tell me i owe more than i do and trying to repo the car…what are my rights…is this fraud