@thomasfuchs Weird and frustrating. I've never had trouble talking to a real person at our post office via the direct local number when I have problems with delivery.
#UPS can do that too. A package for me was "out for delivery" every weekday for 3 weeks, with a daily notification by mail about the approximate delivery time. At the same time, it also arrived anew in the Netherlands every day. It did arrive (even though it was also in the Netherlands). Schrödinger's package.