Cars Q&A

I am interested to buy a Ford Fiesta.wish to know how to avail the advantage of the exchange bonus as I have sold my earlier car. I offered one of the dealers to provide the photo copy of the first registration ( RC) with only my name & then a 2nd photo copy of the same with the entry of the vehicle transfer ( giving name of the new owner) but the dealer refused stating that I did not give him my car to sell as an exchange. I have checked with other dealers who have readily accepted to give the exchange bonus as per above. I was given a similar bonus when I had purchased Santro from Hyundai after selling my other car. pls give an appropriate reply.