[Resolved]  Samsung A / C Window Awt12ka (1 Ton) — a/c is not working

Well I am sending you this mail with great hopes and anticipation that someone will take a serious call and help me to resolve my problem.
I had bought a Samsung A/c Window Vasanth & Co – chennai on 4th april 2008, Model No AWT12ZKA(1TON) DILL NO [protected].
1.IT IS NOT WORKING FROM THE DAY OF INSTULATION.
2. THEY TOLD THERE IS NO INSTULATION CHARGE BUT THEY HAVE CHARGED RS 800 .
3. THE PRICE THEY HAVE CHARGED IS RS 12755.56
STILL IT IS NOT WORKING I FIND THEY PRICE FOR THE SAME INONE OF YOU DELER (SEKER) IS RS 11977 BUT STILL IT IS NOT WORKING AND NO RESPONCE FOR ANY OF MY PHONE CALL .
PLEASE HELP ME TO EXCHANGE THE SAME OR REFUND MY MONEY SO THAT I CAN BUY A WORKING A/C OF ANY OTHER MAKE