The Russian Post has a time machine.
It comes to me "Notice". But somehow "secondary".
I went to the post. I searched for five minutes - no order letter. They said that "the postman has not yet returned to the postman". Why "secondary" - did not admit; and the first notification was not.
I arrived in 4 days. There was not.

He left his phone. The next morning they called: “We had a computer failure, this letter you received in 2015.”