Financial Consumer Protection Act Article 7

When a financial services enterprise enters into a contract with a financial consumer for the provision of financial products or services, it shall act in conformance with the principles of fairness, reasonableness, equality, reciprocity, and good faith.Contractual provisions entered into by a financial services enterprise and a financial consumer that are clearly unfair shall be invalid. If there is a disagreement over the meaning of any contractual provision, the provision shall be interpreted in favor of the financial consumer.A financial services enterprise, in providing financial products or services, shall exercise the due care of a good administrator; for any financial product or service it provides that has the nature of a trust or mandate arrangement, the financial services enterprise shall also bear such duty of loyalty as may be required by applicable legal provisions or contractual stipulations.
中文原文 金融消費者保護法第7條
金融服務業與金融消費者訂立提供金融商品或服務之契約,應本公平合理、平等互惠及誠信原則。
金融服務業與金融消費者訂立之契約條款顯失公平者,該部分條款無效;契約條款如有疑義時,應為有利於金融消費者之解釋。
金融服務業提供金融商品或服務,應盡善良管理人之注意義務;其提供之金融商品或服務具有信託、委託等性質者,並應依所適用之法規規定或契約約定,負忠實義務。

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