FWIW, my question would have been in any decent FAQ but there wasn't one. It was simply: I have to return my keycard when leaving the room in the morning, but I need to store some luggage until the evening. How do I get into the building and into the storage room? IIRC, the main door was just open at daytime, but the luggage room needed a keycard (really smart system, you clowns). Fortunately, there was a guard / service person when I came to pick up my stuff and I more or less knew that in advance based on previous days.