Wrongly accused by KFC employee

I went to KFC in town in Windhoek on I think 18 March 2018 @ around 21:00 the night. First up I was standing and waiting at the intercom (It also wreaks of sewerage smell here at the intercom) for about 5-10 mins without any response from the operator. You could hear them having a conversation and laughing. After getting no response from the operator, I then drove to the counter to do my order and the operator made a mistake with the order. She got up and called one of her colleagues for help. After she returned she finished the order and I handed her a N$100 bill. She then blatantly accused me of *****ing the money from her counter and told me she will go and check the cameras now. She slammed the window shut and left. Stood there waiting for about another 15 mins before she came back and said sorry she found the money. I then proceeded to the collection window to collect my order. The employee gave me the wrong order. I can't recall the ladies name that accused me of the theft, otherwise I would have gone and opened a defamation case against her, I mean really, can KFC not employ capable people?