Awful service at uber eats

I'm writing to express my frustration with an order I placed on June 1st for R360.60with mochachos sandton on ubereats. Despite communicating with the driver, I never received my order. The driver claimed our intercom wasn't working, but the app showed it was delivered. I was at work when I ordered, and my colleagues witnessed the issue. There is no intercom to enter the sandton mall. The correct address was provided

I am very angry that now they don't want to refund my money as i never received the order citing the driver couldn't reach me, when I had my phone the entire time. I am very disappointed at the response i got from uber eats. The worst service ever.