Supreme Group — Supreme solar 200 leter tank replacement

Hi, Myself vijay Rao i bought supreme solar 200 liter in 2016.but recently tank got leakage problem. So i have contacted them, they came and saw and accepted for giving new tank. But the problem is 3 months back i have give complaint till now i have not recieved any new tank. Daily i used to call 4 to 5 times. They dont give proper response. I felt service is very bad.so i want to say for the people who wants to purchase supreme please have a look at service first. The service is very bad. They dont even lift your phone. You dont proper response from them. So please think before you go for purchase.
Thanking you.