Bad customer service/Rude teller

I drove to Total garage Namakgale to buy a drink. The store was empty, but tellers were busy cashing up as it was almost closing time. I stood patiently on the queue for my turn, but it was taking long. So the gentleman behind me was making a purchase for a bag of ice. So he took the ice and left the money on the counter and left, and as it was my turn to pay after 10minutes of waiting? The cashier Kedibone Qibi was abusive and raised her voice when I questioned on why was she taking the ice money n not assisting me 1st, as I was in front. So I was told where to get off, as her priorities were petrol monies and not my coke. Even after I had requested her supervisor Ms/Mrs Shabangu? The forced apology offered by kedibone when instructed to apologize? Was cold and disrespectful. Poor customer service from Total garage Namakgale