Very disappointed with game mall of Africa and telefunken service

ello I’m at game mall of Africa branch. I bought 32 inch Telefunken on the 06/02/2021. The warranty was not explained to me. Now the the Tv is not working it only plays sound only surprisingly 4 months after the warranty is over. The manager called Telefunken to inquire if I can book it for repairs they refused saying they do not take repairs for this Tv as it cost more money when being repaired. Now my question is why is Telefunken selling a Tv they know it’s Not good to their customers? Why is game allowing such to happen. What must I do now because I bought the Tv in your store. Please talk to who ever is responsible for this item to come take it and fix it.mind you I took an Uber to take the tv back to the store and the had to Uber it back because the supplier and the shop can’t do anything about it. What about the guarantee of t he product? Why is game treating customers like this? How come the tv repair costs more than the money I bought with. There is just no logic in this. They must take their tv and fix it. It’s only me year nobody explained any warranty or extended options when I bought it. Only now when I have a problem with the tv. This is not helping me at all.