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When i was there to pick up my car he would only take cash...when sal takes your car in he has you sign a peice of paper that he can perfom work on the car but has no amount on the paper before you sign...Anyone want to look up the laws on this for me...From my experience it needs to have an amount and a time of completion date on it to be a valid contract before the car is touched.. Its not valid after the work is done and signed...please help...