Badezimmertürschloss

The lock of our bathroom door had not been functioning since December or so. We had told our landlord, Studentenwerk, and they had promised to send someone. And so they did, in February. Someone came, inspected our door, and concluded that the lock didn't function, probably on account of the door being bent. They said someone else would come, at some later date, and fix it.
When I came back, mid April, nothing had changed yet. Then, a month later, a note appeared on our door, saying that on the 25th of May, someone would come and actually fix the lock. Interestingly, by this time, the lock was functioning again. We attributed this to the warm weather, and decided to wait for the promised handyman nonetheless. And on the 25th, someone came, with a ruler, a screwdriver, and a new door. After some measuring and investigating of hinges, the problem turned out to be that our door was simply too small, so the lock just didn't hold.¹ Some more measuring and investigating of other hinges revealed that the new door he had been given was exactly the same size as the old one, but with different hinges. Mist.
The handyman implemented a temporary solution by putting some pieces of wood between the wall and the doorpost, and now the lock works. Studentenwerk promised that, at some later time, someone would come to replace this temporary solution with a more final one (silicone instead of bits of wood), which, to my surprise, happened the very next day (I wasn't there, but the silicone is there now).

The Hausmeister told me that some other people in this building, who had had similar complaints, had been much more insistent on seeing repairs done than we. He had, unfortunately, not been able to help them directly, because Studentenwerk doesn't own the building, but rents it. With a limited guarantee period, after the end of which Studentenwerk will be responsible for the state of the building. So they actually want us to complain when something is wrong, in order to be able to tell the owner of the building to do something about it, but not too much, since they ultimately can't do that much, either. Simplicity is still not the Germans' strongest point...

¹ The weather explanation was probably correct after all ;).