As others have written. Underground service. One s...

As others have written. Underground service. One should give minus stars. Ringing is not necessary and you have to search the area around the apartment at least within a radius of 100 meters. The message found by chance on the network that the delivery was made.
NOT THE FIRST TIME BAD EXPERIENCE WITH dpd. This deliverer is the very last. If at all possible, this company should no longer be commissioned.