SHOCKING SERVICE!!

I purchased a Samsung 58" TV from Makro in November2020. Long story short, I only used it for about a month before it just stopped working. The contracted repair shop MM All Electronics in Rivonia advised that the LCD had to be replaced but that there was no stock in SA. Mind you, this is a brand new tv and they want to repair it! Eventually an exchange was approved by Samsung and a service agent was due to contact me to arrange a date for delivery. 3 weeks later and I've heard NOTHING from Samsung. I've been sitting without a tv for a month now and I have to keep following up with them only to be told the same sad story. This is FRUSTRATING AS HELL!!!!! I want my money back as now I don't trust their products and their after sales service is non existent.