> The third-party seller who uses Amazon to accept orders screwed up and gave Amazon the wrong tracking number.
This should be easy to find out. Check if the tracking number on the website differs from what's printed on the package itself, and if so what the tracking for it looks like.
Yep. But the package hasn't arrived, so all we can do is make wild-assed hand-wavy conjecture. Or something.
Of note, when searching Amazon for "NEW and ORIGINAL IBM Lenovo Thinkpad Keyboard 42T3209 42T3177", I find one seller ("u fix it", who "Ships from TN") selling that item. Assuming that's the seller Andrea bought the keyboard from, that clearly doesn't jive with the tracking information, which shows the item shipping from California.
This should be easy to find out. Check if the tracking number on the website differs from what's printed on the package itself, and if so what the tracking for it looks like.