We arrived late at night with three small children, we were given the wrong code, the host didnt answer, neither did airbnb. Finally after about 90 minutes, we were able to figure out a similar code and the door opened, the apartment was freezing and the heating wasn't working. By this time it was past midnight, the host finally responded and offered a different apartment in the same building. But by then our kids fell asleep so we didnt want to move them. We asked for some sort of compensation for this difficult night but the host said that offering us a different apartment was sufficient and disregarded the fact he gave us the wrong code and the heat didnt work in the apartment).