I've moved out of the U.S. - how do I change addresses?

I'm living in Amsterdam Netherlands at the moment and I'm afraid one of my textbooks was mailed to my previous U.S. address. How do I change this? I tried changing addresses in my student account, but it won't accept an address outside of the U.S. Is there a way to fix this via email or do I need to call? My student ID is: 22294980