1 Purchase at KFC but 3 Payments

So I went to KFC Lichtenburg on Wednesday 28 October 2015. I paid for the food via my debit card. I have noticed that KFC debited that amount 3 times from my account. When I qeuried the cashier, she couldn't assist me and gave my the contact number of their IT department instead. According to the IT department they would have refunded me the money on Thursday 29 October. I haven't received it so I went back to the KFC branch and qeuried it again. In store in front of all the customers the cashier yelled at me and kept on yelling at me it is a system error they cannot do anything about it. This was the LAST time I bought food from KFC, I think that the management is uncapable of appointing people fitted for the job. She is arrogant, has absolutely no manners of any kind, she is NOT supposed to work with people. I can't say that I am surprised, we are used to this kind of service from KFC. Incase you are wondering, I still haven't received my money.