Bad customer service

I'm so disheartened by the way the manager at the Avenues treated us shouting at us when we enquired about the one cheese which was marked down to R9 and rest was R18 yelling at the guy which made the mistake all the customers turned around and look at her shouting Infront of the customers 😡😡😡😡 that it's was not her fault shouting at the guy which made the mistake😞😞😞😞