Oh, Tom,
Something seems to have gotten lost in the translation.......
I'd contact the eBay seller and convey your tracking discovery, and let them know they have sent across the world and that your important project is on hold as a result. Ask for them specifically to send correctly to your proper address a new one (at no charge, of course), ASAP. You're just down the bay from them!
Then, perhaps, the one that now sits high in the Austrian Alps will eventually make it over to your wonderful island and catch up to you for free.
Best, Scott