Faulty Goods!

Game sells faulty products!I bought a Hisense 58 inch TV at Game Canal Walk on the 29th of June 2024 while they had a sale. It has been in its original packaging since I got it and stored it in a safe space. I decided to hang it on my wall today(21 July 2024)and everything was fine,I set it up and connected it to my WiFi so I can start using it. I went straight to YouTube to listen to music,I listened to music for almost an hour and suddenly the TV went blank,the music was still playing but you basically can’t see anything. Decided to switch it off and on again and it was still showing blank and now with lines. I was shocked because the TV was okay no scratches or anything,I started to notice a scratch escalating and ink. The TV was checked in store but a very quick check less than 1 minute,they basically plug it and switch it on and off and then they will tell you everything is fine. I took it to the store today and the manager told me they can’t be held accountable because it was checked and should I book it in,I will have to pay. I didn’t even do anything to that TV. When I took it there it was still covered in plastic. If you are thinking of purchasing anything from them,make sure to check it for a longer period at the store. I do believe they sold me a faulty product.