Samsung India — Received defective piece

Address:	New Delhi, Delhi, 110005
Website:	www.samsung.com/in

My name is nisha goyal.
The problem is that there is ice freezing in the lower compartment of the refrigerator.
I've complained about this on 17 january 2017.
Complaint no.- [protected]
Again, i've complained on 27 may 2017.
Complaint no.- [protected]
Again, i've complained on 21 june 2017.
Complaint no.- [protected]
Every time the samsung engineer comes and says to switch off the refrigerator for 10 days. When the ice melts, he updates the software but all in vain.
I want an exchange for my refrigerator as soon as possible. Samsung company has given me a defective piece. Please find me a solution, or else i will go to the consumer court.