Staff not taking orders correctly

As I do twice a week, I visit the KFC at gateway centre and the past four times That I have been there, I order my food as well as a cappuccino, I repeated the order as well as the cappuccino at least 3 times, then I pay and move on to the next window( the lady at the first window said my slip is as the next window.) the lady at the second window gives me my food order and I ask for my cappuccino, she says there is no cappuccino on my order on their system. This was the thing the past two weeks, I pay with card so my bank charges are high as I have to swipe my card again for the cappuccino. I didn't react well this morning as this has happened way too much already. If the staff has hearing problems don't put them by the ordertaking window, or at least make them listen to the customers.