UberEats refusing to take responsibility for disgusting order

I had an extremely horrible experience with UberEats. After months if not years of loyalty on both uber and Ubereats they refuse to refund an order from one of their suppliers and refuse to confirm that they are addressing the matter with said business partner.

I have spent thousands of rands with them and they refuse to refund another R33+/-

The worst part is that it isnt even about their driver their app but actually with the business partner BurgerKind Clearwater.

I received an order of a burger that was falling apart. The burger looked like it was made with bits and pieces of patties take from other burgers (how is this acceptable especially during a pandemic of this nature)

ALL UberEats says is they will refund the Burger, refusing to refund the chips which I also chucked in the bin. Also, they are saying nothing about whether this issue will be addressed with the restaurant and that is the main issue here.