Pick n Pay - Rude insolent behaviour

Never in my life have I been so humiliated and treated with disrespect by a till operater at Pick n pay Bramley store. I had a worst altercation this morning with the cashier. The attitude of the cashier in question was very rude and when I confronted her about her behavior her response was she threw my pick n pay shoppers card down with her insolence behavior. I had to pick up my card and again when I confronted about this and told her that I am going to report her to management she dismissively replied that "she doesn't care I can go ahead and do that".