Samsung Incompetence!

Purchased a 70" from Makro on 28 July, has issues with the TV from Aug 15th and was advised to troubleshoot. I have been assisted by Reference **********, trouble shooting done for no sound, jumping pic, blu, on TV purchased on 28 July. Now no sound after a horrible sound. Dealt with Sibongile, Tamzin, Thivas, Sanele, Mbali, Chris, Babele & Philindile. New reference numbers Reference ********** and ********** as the technician that was supposed to come out tomorrow would have been her on Sept 1st, has been moved to Sept the 2nd. No excuse, no SLA, shortage of technocians, no urgency, ***********. Global Brand! Zero Service