Disgusted by service received from Linda who claims to be the manager at complaints dpt head office..I bought samsung curve 55 inch in 2017 already in 2018 it had problems now I'm told to buy another TV and there are no parts

My mom bought 55 inch curve TV at makro Springfield in Durban 2017 for R12000.00 the first year of purchasing tv it had issues where it would switch off and not work, we called makro they sent technicians and fixed it, 2020 same issue happened, we took it to a samsung repairer they advised us there is no parts for the tv, we called makro spoke to customer care manager she spoke to the repairer at nandi drive which she called us by the name of Lish and told us the parts are not available best we buy another tv and we pay half of the cost, meaning owe must buy another R12000 tv and we will pay R6000.00 due to the fact that there is no parts, the FSB requires parts to be available for atleast 5 yrs, this was also confirmed by the customer care manager at makro that parts must be available for atleast 5yrs...furthermore the repair manager advised that I escalate this matter to the samsung complaints department which i did consultant by the name of Lesego helped me to escalate the matter, today I got a call from a very rude manager which she claimed she is a manager her name is Linda she advised the is absolutely nothing they can do except me buying another tv,she does not care what I feel infact she encouraged me to escalate it to the FSB advising me she will even send me their details she just did not care to even make me understand or sympathize with my issue, I am very disgusted by samsung what a big brand..every appliance in my house and my mom house is Samsung...my phone,my mom phone,my child phone is samsung now this is the service I get in this pandemic who has 6k at this time, after a month of the tv being in the repair, and what disgusts me the most is the response from this consultant at the head office, she absolutely has no customer care experience , he attitude is very disturbing, why was the tv manufactured if Samsung new very well the parts will not be available in just 3yrs?? That tv was bought cash by an elderly who knew nothing about warranty now u people want to capitalize by telling me about warranty, I'm disgusted with samsung bcos of the people that are meant to help us the consumers.