bad attitude and wrong order

I am very angry, I buy food from this Chicken licken almost everyday from Monday to Friday, I spend nearly R1500 a week at this branch buying food for myself and colleagues. Half the time they give me the wrong orders and some people that come after me get their food before me, I let all of this slide. To day was the worst I ordered 7 Rock my souls 3 and a small soulslaw. When the order can it was wrong it was a 1 Rock my soul 7. I then told the male cashier that my order was wrong then let them change it I waited so long, he took his time putting the food in the placsic bags and counting sauce I told him that if was unnecessary for him to delay me more. He gave me his stinking attitude ask me SO.I am very disappointed with the service I received after being a loyal customer.