Hi,
Don't know how it is in the USA, but normally you would contact the shop where you got the game. Or another route is to go straight to the publisher, for the USA you could contact Z MAN games.
Z MAN games has changed their policy a year ago... sadly... because to many people were abusing it and now claim you have to handle it with the seller.
I recieved my copy as a gift. What do I do if it is missing a component or is damaged?
If you or the gift giver know the store it was originally purchased from, please see the process above relating to the type of store it was purchased from. If you cannot contact the original retail store, you can contact Asmodee USA directly at customerservice@asmodeena.com.
If the reason is the one above, you could contact them according their FAQ.
Other wise best to buy is Cundco.de