KFC review: unethical behavior, poor customer service, lies, rudeness

I went and ordered a number 12 which consisted of a Popcorn Nuggets Combo: Wedges & Medium Drink. I ended up getting the potato wedges, a biscuit and cole slaw but NO chicken. So I went back and told them that I didn't get what I ordered, I got NO chicken. The girl at the microphone proceeded to tell me that I was lying and that they did give me what I ordered. I told them I wasn't lying and in fact I brought back everything they gave me in my order in the original bag. I drove right back there after they handed me my order and I saw that it was incorrect. All I really wanted was just some chicken. After I told the girl again on the microphone I didn't get any chicken, they had me pull forward and talk to the manager. The manager was rude when he approached me and gave me a tiny little kid sized popcorn chicken and continued to accuse me of lying. So, I handed him back the bag that contained my original order, so he could see what they gave me was incorrect and that I was in fact NOT lying. In addition I also gave back the kids sized popcorn chicken he gave me. The manager then proceeded to threaten to call the cops on me because I gave my items back to him and threatened me that I better "be careful because people in my position can get slapped in the face". I told him he had horrible customer service and that I was going to report him, he responded that, "he doesn't care if he loses his job". So not only did I NOT get my chicken or a corrected order which is what I was asking for, I also got threatened by the manager who was working during this evening. I will NOT be going back and that is NO way to treat people.