Fake Product Sell by Authorised Centre

To Whom It May Concern!
Dear Sir,
I hereby informing that I purchased with bill 1 PC / 1 Year Guardian Antivirus product on 21 / 2 / 2015, product No. J12 GAV1 217587, product key: a2f2a1n79218584140f0, from unitel sales & service centre, Burnpur Rd, Asansol – 4 and installed by their staff on that day. It has been registered, worked about ‘four (4)’ months and then expired. Which is not promising. I conversed with both of company and service centre. They shown that they tried and after all both didn’t want to take the blame. I lost my product service period prior to completion. But I also expect, it is not on me only, it may spread out more then one consumer. We organising NGO and want to take your help.
Please control them as early as possible.
Thanking You!