14 days no tv, no feedback

I bought a Hisense 58 inch in April 2023 that has suddenly stopped working now in January 2024, I took it back to the store on 16/01/2024 today marks 14 days without a tv and without feedback from the store. If I call number on the repair receipt they refer me back to the store and I'm kept on hold without any help. I tried calling the store again this morning and I was asked to hold until the lady attended me, she asked for ref no and my contact number and advised that they will call back. No one knows what is happening. My kids are looking at the wall at the moment I'm very dissatisfied with this kind of customer serviceservice and it was way too soon for the tv to actually stop working it hasn't even been a year and it was mounted on the wall and still looks as good as new from the box.