I appreciate for the room during my vacation period but you cannot post an advertisement of the residence to Airbnb without any permission from the landlord.
I apologize for losing the keys during the stay and still I feel sorry for the accident. But if there were no such circumstances, I could not fully aware of your dishonest behavior and it is really shameful to say that a person who became superhost in Airbnb does not recognize the significance of the rental agreement.
I still remember your indifferent reaction when I explained you about the seriousness of the situation. Certainly I respect you, and your property as your own business but you have made the third party to enter the residence without any consent of the landlord. You should think about my feeling during the stay that how I have felt to your landlord when I am staying in his house while he is not even aware of this situation. And I must tell you that it is not a respect to advertise the room to your guests while leaving something behind to hide.
There were some misunderstandings about the appointment for picking up the keys. I am sorry to tell you that I have already left Berlin now so it is not available to find you them. But if there are other opportunity I will find them and send it to you by the post registered mail.
I ask you to stop doing this unconscionable behavior.