Security guard harrasment of customers

I was in a queue at Capitec Bank Batho plaza for ATM withdrawal. When all of a sudden a man in a gun stood in front of us(I was number 3 in the long line) and told us to move he wants to work. He pushed the two guys that were infront of me and told them to go at the back(2 stores after the capitec bank).

I was not happy about how fidelity security workers treated us. I understand their work is dangerous and all. But their clients customers shouldn't be treated like that.