LG Electronics — led television motherboard fault

Address:	Mumbai City, Maharashtra, 400067
Website:	www.lg.com/in

I had booked a lg tv complaint cnp[protected] on 20th july. To start with the technician came on 22nd and not at the time promised. He then just brought the tv down from the wall mount, checked the serial number and as per the symptoms described by me, said it is a motherboard issue. He gave an estimate of 6000 for replacement of motherboard. He didn't open the tv or check anything. He took 300/- for bringing a tv down and not even troubleshooting. I gave him 500 and he said since he didn't have change, he will adjust with the final replacement part. No bill was provided for this service. When we further called lg, they said they don't have the part and have no date when can they fix the issue. We asked them to give us the number of head and two times they provided incorrect numbers. What kind of service is this and what's the solution?