Defective Samsung TV

I bought a defective Samsung TV from Makro, on the 29th May 2018. It kept switching off and on, and I notified Makro of the fault immediately, but they ignored me. Samsung also ignored me until I went to HelloPeter, and then sent a technician, Edward, around who identified 47 errors in the mainboard. Samsung undertook to replace the TV on the 3rd of August, but make excuse after excuse for not doing so. I’ve dealt with Lesley-Ann, Aadilah, and even Nadir, who said he’d call back within an hour, but Samsung certainly don’t seem to have any sort of after-sales service.