DTDC Courier & Cargo — Lost my package and not giving my money back

Address:	Ernakulam, Kerala, 682030
Website:	dtdc.in

I sent a package which was a fruit worth rs. 1200 which is used as cancer medicine for my relative from kochi to indore on 7 Febuary 2017 via dtdc plus for rs. 1435 which is a speedy way to courier that . They gave me an estimated date as 9 Febuary 2017 to deliver my package but they lost my package and its been 2 months and when i am tracking it its still showing in mumbai . Very pathetic service of DTDC i called Kochi DTC regional office they told me to fill the claim form after many calls and mails and after that no response. They are not replying on my mails and not taking my calls. Every time they say that we will look into the matter and call you back. But no response after that. I am just tired of calling and complaining again and again. Please help me out in getting my money(rs. 2635 ) back.
My Consignment no. is V34062917