TV Warranty

In January 2021 I bought a 65" 4K UHD Smart TV which had a 1 year warranty. I also registered the Unit on the Hisense website to extend the warranty as instructed upon purchase. In October 2021, the Tv just went blank with the red light still on but no response from the screen itself. I reported the Issue with Hisense services and they deployed a technician to fetch the unit and repair it.

That was the last time I saw my TV. I have sent multiple e.mails and complaints to Hisense requesting any information regarding my unit but nothing till today. As a customer I really feel ****** by the brand. I have paid serious money for the unit to be treated like this and since all my efforts have been completely ignored, I have ran out of options and need help in getting a resolution to this matter.