Review Poor service provision

I wanted to buy 2 loaves of bread so i had rand and asked to topup with bond then they told me they don't mix currencies...i then bought using USD and they gave me change in rand which was short of 1rand when I told them to give me in bond they said they don't mix currency rather i give them more money for a plastic bag which i had not ordered or leave my change...does Bakers Inn 9th ave and Robert Mugabe use local bank rates?