I have purchased Semsung LCD TV from Aditya Vision on 09.11.2010 and serial no MPHQ3PBZ910826H and Model no LA22C450E1XL. my TV's not working from 14.10.2011 and I have complane to customer care on 19.10.11 where complane no 8436700934 and his service enginer had visit on about 21.10.11 and said to chenge the speakar but till date no any responce from his end and till date I have about 50 times call to customer care and customer care saying that today he will visit, today he wil visit so, kindly help me for solve my problem