To: Reception Staff and Management:
Today (Tuesday, December 23rd) an unknown man knocked on our door at about 6:35 PM. We were not expecting anyone and nobody from the reception called us before he was sent up to our front door.
Please do not admit anyone into the elevator to our front door without first calling our apartment to obtain the consent of someone at home. To admit someone who is unknown or unauthorized to our front door represents a serious breach of security. Moreover, if no one is at home, then no visitor should be admitted to our front door.
Thank you for your understanding and cooperation.
Praorn and Daniel