Lost all faith in Makro

I have bought a Defy fridge from Makro on line on the 3rd of June 2020, ever since that fridge was delivered I have experienced nothing but stress. 1-My groceries were perishing with the fridge on and at the same time the fridge sounds like a tractor, Because I knew and trusted the Makro brand I have called and laid a complaint trusting that my issues would be resolved, they have sent a technician twice already and yet I am still experiencing the issues the Makro customer care even said they will be sending a different technician for the 3rd time 3 weeks ago even now I am still waiting. The fridge was delivered from Makro Strubens Valley. The same they came and delivered this fridge they must just come and take it back and repay my money back I cannot continue living like this.