Day light ******* | Defective Geyser

I have lost faith with this group. I bought five geysers with them last year but only had them installed this year. 6 months period of return for defective geyser had not yet lapsed. Anyway I was told the company will send a technician to check what is wrong with the geyser. I waiting for weeks. Finally I deceive to write to them again. I was then told the matter has been closed. Their technicians report says the geyser was not installed correctly. I asked which technician bcz I have been waiting for someone to do the inspection. After that I was told wait again. Now when I said emails, I don’t get replies at all. I was willing to do business with this company but after this, i have lost faith and I am think of reporting then to NCC.