Yesterday I found a note from the post office on the floor. I guess they pressed the wrong button, since I was at home, but didn't hear anyone at the door. Sadly you can't go to the post office the same day, so I had to wait until today.
At the post office it turned out that two packages had arrived for me: one containing the Blender Bundle, and the other containing 6 Dutch computer magazines my friend Els had sent to me.