Worst service ever

On the 7th November 2017 at 20:50 I went to KFC to purchase 2 meals I asked for a double crunch burger was told they have no fillets asked for a zinger burger had no fillets then I took a cornel burger and a snack box which had fillets as it comes in a crunch burger I asked with zinger sauce and a thighs and 8 wings I waited over 20 min to get my food as I was the first customer but over 8 customers that came after me received the food before me and when I eventually got my food the burger had no sauce as to what was requested and the gave a leg with the meal and to top it all the coke I asked for was flat not even drinkable which I threw away waste of money I never expected KFC at a airport to deliver such a pathetic service I'm actually disgusted that I went to buy food that's not worth my money