Lenovo — Mobile display not working...

Address:

Thane, Maharashtra, 400604

I bought lenovo vibe shot online and got i deliverd till 30 th april.
Soon started facing problem like over heating handset.
After 1 and half month o[censored]se the display blanked out for unknown reason.
I went to lenovo service center at thane, krishna electronics on 31/5/2016. I have still not got my phone repaired. They say that they have no received the parts yet from the company.
I have followed up with them around 6 to 7 time and i have got same response.
Lenovo has poor customer service.
Their product is not at all as good as they show. False representation.
Pls help me out so i get my phne as soon as possible.