faulty tv

I bought a TV at Game wwst srreet durban, it was on thev 13th of September 2024,, I picked iit myself it was a Friday, U got home it was installed successfully, we watched it over the weekend, then on Monday, I tried to switch it on and there was a line appearing on the screen,. I then decided to take it back to the store, and I left it with them, I was told they will give me feedback after 10 days,. After 10 days I was told, to come pick up the TV because its my fault I broke the TV,. I then logged a complaint, and I was told they cannot help me because it was my fault. II am very dissappointed because I was blamed for something which I feel was sold a product that was already broken from theur shop., whuch means I have lost my R5000, which I worked hard for.