Customer Support Center — led tv repair guarantee not honored

Address:	Bungalow No. 95B, Kamgar Nagar, Tilak Nagar Station Road, Kurla east 400024, 400091
Website:	www.customer-support-center.com

I had contacted customer support center, kurla for my panasonic led tv's repair on 15 january 2019. They claim to be an authorized panasonic service center. They charged me rs 6342 for the backlight repair and gave me a 6 month guarantee. The same problem occurred after 1 month. I called them again and again for more than a week. They kept promising to send a technician but did not send anyone though the tv is under repair warranty. The technician called me on 20 february and said he would visit but did not show up. On 25 february i once again called them in the morning when they said they would send a technician in the afternoon. When no one came i called them again and spoke to a senior person there who first said no one can come and later said he would send someone in the evening, but no technician has visited my place for repair. I called another company which said the cost of the repair should not have been more than rs 4400 and i was overcharged by csc.
As the tv repair is under warranty i would like to be refunded because firstly i was overcharged and secondly, the warranty was not honored.