Poor quality TV getting dark on the sides one day out of warranty

I bought a Samsung TV model US49RU7100KXXA ON THE 17/9/2019 at Game Store. In August 2021 it started darkening on the right side. At first I did not think it something serious. In first week of September 2021 both the left and the right sides became dark. I went to Game to go report the problem. I was told that a proof of purchase is required for them to book it in. I went back home to go look for proof of purchase. I couldn't find it until the 18th of Septermber 2021. I went back to Game to go report the problem. They wanted the model number and serial number. I went back home and recorded both. I went back to the store and register a call and gave me a reference number. I think the quality of this product was poor, hardly 2 years after I bought it the problem started. This poor workmanship. I thought Samsung is producing good quality products but I proven wrong by this TV. This is the first time in my life seeing this problem. I have a Panasonic and never experienced any problems with it. I spoke to their representative at call centre who said Samsung cannot help me because the call was logged a day after warranty expired. I wrote to *** and they said for manufacturing faults are only covered in the first 6 months. Therefore they don't take any responsibility for poor workmanship. That leaves me with a bill of R3000 within the first 2 years of buying this TV. I would like to warn South Africans of poor quality products produced by Samsung.