KFC thinks I am stupid

I am highly disappointed by this. I went to KFC Protea Point yesterday and bought StreetWise 3 with chips (takeaway). To my surprise when I got home and opened the package, my Streetwise 3 was a side breast, drumstick and a wing. Like seriously? I know it should be side breast, drumstick and a thigh or a centre breast, to be specific it should be 2 big pieces and 1 small piece. You might find this unnecessary but I don't as I paid for this. I normally go through to the drive thru but yesterday I went to buy inside as the drive thru queue was too long. I have never had any unsatisfactions since buying here, only yesterday and it was my first time going inside the to place my order. Does it mean that preference is given to drive thru customers instead of those who order inside the restaurant? As you know that I will only open my order when I reach my destination? I find this very unprofessional, is the packer trained or not?