В UPU можно не писать <_< Ответ от них такая же стандартная отписка, как и у нашей почты:
I acknowledge with thanks receipt of your message with the above reference, relating to postal services of Russian Post.
First of all, I should inform you that the International Bureau of the Universal Postal Union acts as a liaison, consultation and information body for the designated Operators of Union member countries. The UPU International Bureau works directly with its Member countries, but it is they who are responsible for the execution of the postal services. It is therefore up to them to take the necessary measures for the proper operation of their services and to take action in response to customer requests.
This being so, I am sending a copy of your message, as well as a copy of our reply, to Russian Post, asking for steps to be taken to pursue your inquiry. You can also write directly to the Government body that regulates the Postal Service in Russia.
Yours sincerely,
Mirko Ponti
Testing & Analysis Specialist
DOT Assistant