Clicks Pharmacy Motherwell

So today my mistake was not hearing when the cashier was calling for next customer,when I got to the till the cashier guy was so rude telling me that when we on queue we think our zeros so he won't be wasting his time rasing his voice.Yeey there was a lot and the other cashier lady was also talking standing up for her colligue.I was ****ed guys,they just don't know anything about customer service

Clicks Motherwell Cashier:Siya