swapping finances contract

On 2015-11-16 i apply for car and the dealership have done every vetting.I have sight the documents of the bank yesterday and I saw the invoices that the dealership have given to the bank and the dealer have put on only the amount and i call them and they explain to me what was on it and it was thinkings i didnt know about and told them to cancel the deal . I want to know if its possible to keep my a proved contact but that i can find a new dealership that i dnt just cancel the contract but just change it