Service delivery always at its worst

I ordered a special for the buy one get one zinger burger this morning from. The uber eats app. I only received 2 burgers. There are 4 people In my home. I paid in full and now 2 people won't get. Why would I order 2 of the specials if I didn't want 4 burgers. I'm so frustrated because this kfc is always messing up my orders. This is not the first time that items are missing . Today is the last I can tolerate it. Worst kfc service ever. This is the kfc malvern Durban. Extremely disappointed and dissatisfied.