Samsung — Television 55inch(55TU7200-model no)(service request no([protected])

Hello sir…i recently bought a samsung 55inch in May 8..contact no([protected])pls check above no for the service request…i had called service for past 10days and they are not at all responding me and nearby service center also not responding…i had a issue of channel up and down button is not working and the 1st time executive visted my house and said there is no issue of remote and saying there is an issue between samsung and airtel dth didn’t know when it will be normal…their speech is irresponsible and again i called to customer care and said what are the things happened to me and they told cheif engineers will contact you till now there is no one called me…pls help me to resolvr the issue…i am totally got busted its been 3yrs only which i TV bought