Hisense and Makro germiston, terrible aftersales service

Bought a 75" tv on the 4th of March from makro. Did the installation at our office after installation, switched it on and the tv has a crack in the side and the screen has black and blue stripes, no visual. Hisense technician came out to our premises and the warranty has been voided because its cracked while you can see there is no crack on the screen and no visible human intervention for the crack, its internal damage. The technician agreed that they have an issue with this tv's but unfortunately it's a discussion we have to take up with Makro Germiston. After several phone calls to Makro, they haven't sent their technician yet. R11K wasted and no assistance from anyone. I will never buy from Makro Germiston or Hisense ever again. Their quality is absolutely terrible and the after sales assistance from Makro Germiston is terrible.