Volkswagen Finance Pvt. Ltd. — Refusal to issue confirmation letter to rto about closure of loan account

Address:

Mumbai City, Maharashtra, 400099

I had taken a loan for buying a volkswagen polo car from their own financing company for rs. 100000 (Loan account no. [protected]). All the emi's were paid without default, and the account was closed in august 2014. I was issued an noc too for cancelling the hypothecation on the registration certificate. On submitting the documents to the rto, the office wrote to the financing company for a direct confirmation. The company is adamant that they will not write to the rto, but keeps giving me the statement of accounts showing closure of the account etc. The rto refuses to accept these but demands a direct reply from the company. My papers are pending with the rto for over a year. Who is at fault here and how can i proceed further in the matter?