One option is that If I don't want to eat pepperoni pizza,I would say it in the restaurant
Hello, I ordered beef pizza but I got pepperoni pizza from the delivery man.
Could you check it out what I ordered once again? Maybe you made a mistake between my order and another order. Is my idea all right? so Could you send beef pizza again?
Two options is that If I am hungry very much,I would say that
Hello, I ordered beef pizza but I got pepperoni pizza from the delivery man. but That's O.K. In fact, I like all kinds of pizza but today I wanted to eat beef pizza so I would eat this pizza.