Xiaomi India — Handset misplaced by service centre

Address:

Mumbai City, Maharashtra

I have submitted my handset mi4i to the service centre in erla, vileparle west mumbai.
4 months have passed, i receive calls from main office banglore to collect my handset/replacement as earliest from the service centre.
But the service is uninformed about this n ignorant about this. They say, "its been a very long time this complain has been registered we need to track ur phone give us a few more days". I have lost all hopes about getting my phone back n very irritated by the kind of reponse given and the way company treats costumers. I will highly recommend people dnt buy any products from this company because once the product is gone and given to service centre they misplace it. Ridiculous and irresponsible :)