Xiaomi India — Hanging problem, auto re - start

Address:

Gurgaon, Haryana

I purchase a brand new xiaomi redmi note - 4g phone on date[protected] from flip kart. Since that date my mobile phone have been facing a problem of ''hanging and auto switch - off / restart''.
I have been trying to call on your toll free no. But nobody have been answering my call. .

My name; - karan aneja
C. No; - [protected]

: - replace my phone or refund my money back.