Postal Act Article 12

Actions affecting postal business handled by Chunghwa Post by legally incompetent persons or legally quasi-incompetent persons shall be deemed actions committed by competent persons.
中文原文 郵政法第12條
無行為能力人或限制行為能力人,關於郵政事務對中華郵政公司所為之行為,視為有行為能力人之行為。

English translation for reference only; the Chinese text prevails. Not legal advice.