Bad food, bad customer service

Yesterday I went to Nandos in waterfront... I ordered liver a wrap and the hotpot. I ordered the wrap with no salad and instead coleslaw, when the wrap came it had no coleslaw on and proceeded with my slip to the front the staff was very rude they didn't take note of me even after calling them and didn't even apologized then I had to wait for my livers cause there was no rolls again I asked and was just ignored I find this very unprofessional and spoiled my mood