More from Edward Pentin's book, "The Rigging of a Vatican Synod? which you must buy!
"A second source in the secretariat said that a “discussion” then took place among staff concerning what to do with the books. Cardinal Baldisseri, he said, was “blowing a gasket” about the book being delivered to the synod. He also alleged that the cardinal then got on the phone to the Governorate, the administrative body managing Vatican City State. He reached Giuseppe Cardinal Bertello, president of the Governorate, and ordered that the postmaster of the Vatican post office be fired, saying his staff had not done their job stamping the envelopes. In response, Cardinal Bertello reportedly told him to calm down and suggested the books be sent back to the Vatican post office to be stamped."
"The inside source said Cardinal Baldisseri still wanted their delivery blocked, but he was warned such an action would be a crime and so changed his mind. Instead, because they had not been stamped, he decided to apply a different tactic and had them sent back to the Vatican post office to be stamped properly. The books were then held back from distribution as long as possible."