Leeco / Leshi Internet Information & Technology — Service center delaying phone repairs

Hi i gave my handset a leeco max 128 gb which i purchased from flipkart for rs 36999.00 on 29th feb 2016 and on october 2nd the phone refused to startup at all. Even on charging no lights would come up. So i went and submitted the handset for repairs under warranty.. The service center was unable to fix the handset so they sent it to their main repair center and was revived on oct 10 however with jobsheet number of js[protected] and from that day i am calling their call center everyday and i get only answer which is the handset is with the service engineer.. I have raised numerous complaints with the call center and in spite of 30 plus calls from my side no one has called me back till date. This is the most pathetic company i have every done business please help me get my phone back... I am so disappointed in my purchase that i will never ever by a leeco product as long as i live now and i will also suggest any of my frnds to never do the same.