Plasma TV drama

I bought a 50inch plasma TV at Lewis - Mayfield branch on 16 March 2019 for R18190. This was on higher purchase which is why the amount is this much. The TV broke within a year after buying it , I sent it back and they said that they would fix it. It was fixed and was returned to me. When I received the TV it had scratches on, I didn't complain as I was happy it was fixed. Fast forward to now 2022,the TV stopped working again in October. I went back to see if they could assist and I was told the TV was out of warranty. It's so frustrating cos now I'm expected to fix from my own pocket after paying so much for a faulty TV. I hope someone can assist in this matter as I am a pensioner and can't afford to pay for these repirs. Hello Peter please assist