Microtek Twin Guard+ 1000 Va Ups — Voltage Fluctuation damage my computer

Address:

Haryana

I bought a Microtek twin guard + 1000 VA ups to run my computer with, i have a single cpu with monitor and 2.1 music system hooked up to it. my monitor draws 100w and the smps of the computer is 450 watts. for the first month it worked ok, then i started noticing voltage fluctuations.. my screen would hiccup to black whenever power would come. at times this would be a constant problem . i called microtek and they sent their representative. after fixing it and changing its service board . after he left when the power came the ups simply would not hold and the computer rebooted. i called his boss and after they tried to drag me through the mud with what i am doing wrong or abusing their piece they sent him back out. he fixed it again. it seemed to work then 2 hours after he left their was a small power surge in which it again rebooted my computer twice .. while it rebooted the second time the system had not fully loaded from the first time and resulted in corrupting windows 7. 2 hours ensued getting it fixed up. i again called asking the company to just send a fresh piece, they say that as i said it was ok at 7 it is not their fault that it broke at 10. i bought this ups around august 1, 2012. making it 2 months old . serial # is 12DUFNU58840. i have to say i am very disappointed in this company and find their rudeness to customers outrageous, the engineer was a nice fellow and tried his best.