So if you do not get what you ordered you still tip? If it were me I would refuse to accept the order and then order another pizza from a different place.
That is sad. Whoever has had this argument should experience real pizza at least once. Be it NY or... ::shudder:: chicago style.
If I lived in the US I would never order from Papa Johns, Pizza hut or a chain restaurant like that. I have experienced REAL NY pizza, you can always find a small pizza place in making real pizza instead of the chain crap.