TVS Credit Services — I didn't receive my 2 wheeler's RC book

Address:	Guindy Industrial Estate, Chennai
Website:	www.tvscredit.com

I have taken a loan with TVS Credit with loan account number: TN3000RT0000089.
Registered email id: [protected]@gmail.com.

I closed the same about 8-9 months ago, however, I haven't received my vehicle's RC book still.
I have availed myself of the loan facility by submitting my RC book at the SVS TVS showroom, Vawin, Ambattur Industrial Estate, Chennai to a representative from TVS Credit Services (His name is Vinoth).
For my loan closure, I have been contacted by a guy named Rajesh (contact number: [protected]), even I am trying to reach this guy for the follow-up on the RC book, but no proper responses were received.
I have visited the TVS credit branch @ Guindy Industrial Estate, Chennai for the inquiry about my RC book, where they informed me it is not there and ask to check with the showroom (where I purchased the vehicle).
I went and checked at the showroom as well, but the RC book is not there (where they mentioned it is collected by the TVS credit agent so it will not be there).
Now, even after closing the loan, I am getting redirected here and there to get my RC book, but nothing positive happened.
Sent emails and done many phone calls ( to their toll-free number: [protected]), however, no proper responses were received.

Registering this complaint to get my vehicle's RC book soon.