Subject: I have been cheated and deceived by this firm.Customer service: Very poorRecommendation: Strongly suggest not to buy anything from them.I have been trying to contact Mr. Senthil for over a month now but he has blocked my number and Im unable to reach him. I still have my UPS and batteries, purchased from him, under warranty cover and he is completely avoiding my every attempt to contact him. Ive even tried to send him text messages and he has not responded to my any of my SMS either.As a customer, i feel that i have been deceived and cheated by him.Im facing the same problem as before and the UPS isnt giving power back up at all.The entire power unit shuts down once the power goes off.I expected him to be a man and behave like a professional and respond to my messages and calls but he refuses to do so.P.S: I have the bill with the seal and signature of the firm but they refuse to even talk to me, let alone acknowledge the problem.