UberEats- order never arrived or delivered and they refuse to refund me

Ordered food from Fishaways in SunnyRocks using UberEats and my order was not delivered. UberEats claims that they attempted calling me and waited 8 minutes at the same office that I have been receiving my previous orders. My order never arrived and they refuse to refund my money for 8 meals over R1100. This is a ****, what happened to my order??? The store confirmed that the order was collected but they couldnt get hold of the driver. I will never use UberEats again!!