Bad service

Good morning I called Makro Wonderboom just now at 9:12am today. I spoke to lady named Gertrude, she was so rude on the phone, I needed information on the black Friday promotions, I also wanted to know what I should bring to the store to reopen my Makro RCS credit card. I asked her if they still have TV's In stock, she was the rashing me to finish the call, saying that there are other customers, and" if there is anything that u need to know just come to the shop", She was yelling at me, I did not even get a chance to ask her about my Makro Card. it's the most horrible, horrific customer service I have ever come across in my life. People that where sitting next to me could hear her yelling. I said to her that she is yelling at me she said rudly and still yelling "u are not listening to what I am saying and you also yelling at me." I can't believe that how does someone with such bad service is put at customer care department. I don't think I would want to reopen my Acc again. I am so disappointed, I have received good service from staff at Wonderboom before but she has changed my perception about customer service that side. You need to do something about her.