Most horrible app to order from in South Africa

We had a delivery coming from UberEats that was for McDonald’s Hamilton, this was the second time disaster. The driver said he was downstairs, my fiancé went downstairs but no one was there, he came back up and after 5 minutes went back down again to see if the guy was there but saw that no one was there yet again. A photo was placed on the app of where he supposedly left the food but when my fiancé was downstairs there was nothing, the driver took a photo of the food outside on the stairs, then picked the order up again to take for himself and took off. We haven’t been able to get a hold of him after that. We placed a complaint on the app and even though I stated that no sufficient contact was made for the delivery, they still refused to redeliver or refund.