Wrong order, bad attitude and dissapointing quality

I went through the drive through with my girlfriend and ordered that +-R30 deal which included a crunch burger, small chips and a small drink. I had to repeat my order a few times which wasn't the end of the world. I proceeded to the next window, I got my cooldrinks and just the burgers. I inquired about my chips and they said that the previous person didn't put the order through correctly and they had told me to drive around again in order to rectify the problem with the person who took my order. Seeing that it would be a waste of time, energy and petrol, I asked if they could just rectify my order at the window that I am at since they don't even need to really raise your voice for another person to hear them. The lady said that she can't (with a terrible attitude) and after asking her to explain why I have to drive around she took the order that she originally gave me and started shouting (not at me directly). I don't exactly know what she had said since I can't speak the language that she was speaking at that point. I got my correct order but as I was checking the lady was rudely telling me what the order was and saying that I can go. Feeling very rushed and frustrated we went home to a very disappointing meal. The crunch burger rolls looked like they were sat on, the patty was more like a marshmallow patty instead of a crunch patty and the chips looked like they were being kept to one side and forgotten about until now. The only truly satisfying part of the meal was washing the meal down with our small drinks. I understand that fast food isn't a 5star restaurant but there should be some kind of standard which both me and my girlfriend feel that KFC has not come close to. Would not recommend buying food at Capricorn Square KFC.