Worst kfc in SA

I really have tried multiple times (around 5 times) to use this drive through. They have been really slow, and messed up my order every time. I have now sat in the drive through for 15 minutes after placing my order (2 cars in front of me neither moved) I drove away. As this kfc is around the corner from me, I would appreciate it if I could actually choose it as an option when I eat out. Without doubt the worst overall experience with any fast food chain in south africa.