There is a new option, "Mail restrictions". You can check this list with restrictions in the page "Mail restrictions". You can find the link in the left menu after you log in.
The USa to Russia is now in this list. If you receive an address and your post office is not accepting mail for that destination, you can add the restriction to this list and you can send me a PM with the ID of that surprise and I will cancel it. In this way it will not affect your sending limit.