Thanks for sharing your experience, Kristin! All those doors are there for your safety, since nobody else can get inside the building or the flat. People live in this building for decades with all the locks and doors and nobody ever complained. Considering that the key with a blue plastic on it opens the flat, you just had 2 metal keys for the main entrance and the second door. I also told you everything about the keys and how to use them at the office. The night manager told me that at the moment you called him, he was driving, so he could not talk. Sorry for that, but normally we call our guests back in such situations. We meet all our guests at the office for some reasons: first, the location of our office is really convenient for all our guests that arrive with a train or a plane, since it is located right in front of the main train station, and AE bus goes from the airport to this station as well. Second, people with cars also have no problem coming to the office, because it is located central, and most of our 80 flats are reachable in less than 10 minutes from here. Third, we provide detailed information about the city, we give maps, we help with parking, etc. And we also need our guests to sign agreements and register for the police. It all can be done at one place at once - at the office.
It was nice meeting you and we hope to see you again some day!