LG Electronics — lg smart tv - white spots appearing

Address: Pune, Maharashtra, 412105

Dear all i had purchased lg led tv in 2014 august. I had got 02 years warranty on the product. Lately i came to understand the amc is not available and immediately called up the service center for getting the product in amc. I had requested the engineer to visit my residence in evening as i am in a working class. But unfortunately nobody had come. On sunday it was observed white patches coming on the screen which was increasing. I logged a call with service center and post engineer visit i was told since its not in amc i will have to spend approx 21000 to get the same repaired. I would like to understand why the product had an issue in less than 03years time frame. Secondly why was i not given the timely support for getting the product in amc. I would request to kindly help and support as the cost is on a very higher scale.
Regards
Manoj s nair