Bad service

My order was 3 ice-cream corns ,ordered via drive thru and was not told ice-cream was not available .Their were 3 cars ahead ,when paying still not told ice-cream was not available.Waited almost 30 min and when we got to the collection point , that lady did not even bother to apologies for the inconvenience and long wait to tell us ice-cream was not available.She just kept on doing what she was doing ,speaking in zulu ....only after 2 min she ask for the slip and she caries on say in zulu saying give them their change .......she then gives us change and the slip but they tore the part that had the scan code to rate them .My problem is the fact no accountability given , just to apologize for the inconvenience of waiting for nothing and acknowledge us .....The fact that we are black served by a black person does not mean that I as a customer should not be recognized ......