Xiaomi India — Phone not received and its been 2 months

Address:	Gurgaon, Haryana, 122001
Website:	mi.com/in

Its been 2 months I ordered a Redmi Note 3 From Mi.com\in.
Firstly i got a defective piece and I immediately called both the delivery person and Mi India, and they took 1 month of time saying they have initiated reverse pickup, but the device got picked up after 1 month.
Now, its been another 1 month they have got the device to their warehouse and Mi India has not dispatched the the replacement device.
On contacting the Cx service team on daily basis, I get only 1 statement that they do not have any information and team will contact in 24-72 hrs but nothing as such happens.
Its been 2 months and I have not received any call from Xiaomi India.
Mi India have got the worst Customer Care Executive among all the Customer