Whirlpool oven from Home Hyper city Pretoria

Bought a Whirlpool 90cm oven from them on 11/4/2022. Delivery with broken cardboard 2 dents on top of oven. When installed by eletrician it tripped our electricity. After 2,5 hours of searching where the fault is we found loose wires causing a short inside the oven. Took photos and send to Moses from Home Hyper. Dit not have the courtesy to call me back. Eventually the electrician fixed the loose wiring and I had to pay him R950. There were also *****s missing at the back of the oven. Phoned Ahmed at Home Hyper and claimed back R950. Never phoned back but Moses phoned and said there is nothing that he can do as I should have contacted them and they would of contacted Whirlpool to come out. The fact is he wouldn’t phone me on the day and we needed the oven to work. He is not interested to refund anything