If you are an international traveler, beware of Kjøbmandsgaarden Hotel.
Here is our story. Our plane arrived late at Oslo airport. We spent 3 hours at the passport control lane, waiting for our turn. As a result, we arrived at Kjøbmandsgaarden Hotel past midnight.
A local policeman helped us to find this hotel. He also instructed us to park our rented car behind the hotel, saying it is the hotel's property.
Unfortunately, the hotel was locked, and nobody answered the door. We had the prospect to spend the night outside. We sat in the car when suddenly we heard the siren. The inside fire alarm went off and all residents of the hotel went outside. We tried to ask them how to contact the owner of the hotel. A couple of people called the owner's phone, but nobody answered the call.
Finally, the fire department arrived and one of the firefighters approached us to help. He knew where the mailbox was and took out the key from supposedly our room. He was very helpful. Because of him, we came inside the hotel to "our" room.
As soon as we opened the door, there was another surprise. We ordered a family room, which can accommodate 3 people. But room number 14, had only accommodation for 2 people. As a result, one of us had to sleep a few hours on a bare floor.
In the morning, we had another surprise - a parking ticket for parking in someone's parking space. Apparently, the parking lot did not belong to the hotel.
And best of all, the owner of the hotel never contacted us.