Cars24 Services — Renault Kwid Car

I had bought a used car from cars 24. They offer free RC transfer and i got the same benefit along my car purchase. I have an address proof of haryana but they transferred the car on my name with a care off address that too from delhi. so basically they might have used some rent agreement of some thing to transfer a vehicle with a careoff adress. Now i want to sell my car but i am unable to do, because in my address proof i have an address of haryana but my rc has a registered address of delhi. i am asking cars24 to provide whatever document they have used in transferring RC on a delhi address but they are putting my querry on hold from past 1 month.