No support for Large Appliance repairs

In July 2018 we purchased a HiSense fridge freezer. Within a month of delivery we had a couple of problems that we were unhappy with. I was told to email a copy of our delivery note and they would see to the repair. This repair took 2 months to complete and then what was requested was not done. After another 4 attempts to resolve this problem we just gave up. Now we have a major problem. Once again i emailed the document, but i am still not receiving a reply. Purchased from Pick n Pay Hyper Amanzimtoti . Customer delivery # 12199