Sony India — Led tv not getting repaired from past 11 days.

Address:	Mumbai City, Maharashtra, 400066
Website:	www.sony.co.in

We had purchased sony 40' led tv from croma. We registered complain in croma for non working of tv. Through job no j53312234 dt 12/12/2015. On 14 dec engineer from krish electronic visited our site & told mother board is having problem & need to be replaced. He replaced it by taking charge of rs 7010/- receipt no 9670. Still problems was not solved than we complain again on 16 dec again engineer visited & told tv need to be taken to service center for checking. On 17 dec they took tv to their service center. On daily follow up with their representative mr sachin we has not giving us detail & estimation till 23 dec. When we contacted sony helpline they said estimate was generated on 21 dec only but mr sachin has not telling us. On repeated call back from past 4 days on 23 dec he told me estimate is ready & is of rs 1304/-. We told them to change it than he is saying now part is not available need more 7 days time. Till date matter is unsolved. According to us their is no problem in mother board. Problem is only with this sensor which they are replacing now. But they are not ready to accept it. So now please tell me what to do?