Some online places will take the loss on that one, especially if you contact them. I remember a ways back I bought a crap load of stuff from music123, and when I got my order they made a mistake and gave me a few extra things... My order was short one item, but they told me to keep the other items on them due to their error and shipped out my missing item. You can call if you like, but chances are when they realize the mistake they'll either take the loss or find some way to right it off.

Squeak