Public Telecommunications Statutory Fee Charge Standards Article 5

Except for the case of over-payment, payment by mistake or by stipulation any other law provided, the payment shall not be returned after applicant pay for Statutory Fee by the Standards.
中文原文 公眾電信規費收費標準第5條
申請人依本標準規定繳納各項規費後,除有溢繳、誤繳或法規另有規定者外,不得要求退費。

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