No refund given on Microwave

On the 4th of August i placed an order on the Pick n pay asap app for a microwave and a plasic cover that you put on top of your food when you warm your food.The microwave dis not show out of stock so i selected it.When the order was delivered i only got the plastic food cover but no microwave and was vharge r35 delivery fee and that plastic thing cost 19.99 so who in there right mind would buy for delivery that cost more than the item