TV breaking after 6moths replacement after 3days

Bought a samsung tv was excited thinking great brand and "what could go wrong really". Six months later black screenthis was the 10th of March called the shop we bought from they said they needed to contact Samsung since it was still under warrant. then the nightmare began. samsung said we can't bring in out Tv or warrant will be void so we had to wait for a technician to come to our house. Lots of calls later we were told technician will come with the part to do the repair we asked how he new which part without looking at the TV we were told since he is a technician he has seen issues like this just from the report so he knew what to bring. 24 March technician comes with no part in sight says sorry we don't have the part so reverse logistics has to pick and bring new unit. 30March new unit comes we happy 3 days later blank screen but standby light is coming on started the torrid process once again. Sad thing is multiple people handle a case and it lacks continuity everytime you call you explain your situation from scratch and everytime you are assured that we will definately get it resolved. A servive controller for johannesburg called Gugu called us and said it seems your unit was replaced with a unit a client had brought back with issues. That statement some guy called and said no i just mixed up numbers but already trust has been lost. By the way the word escalation/urgency means nothing at samsung it is said just to put you at ease. today 20 april we are still sitting with a tv that is not working. Called Samsung spoke to Terrence who says we will have to wait till nextweek for a replacement that is coming from Durban warehouse after the recent floods. How do i even trust that am going to get a proper functioning unit. At this point I am beyond defitted. I woould loves to sale everything that is Samsung that i own they are not honorable to their word lying to clients is easy than the truth. disgusted