我的信用卡授權書 My credit card authorization forms

以信用卡付款前須先簽署授權書（僅限美國及加拿大持卡人）。每份授權書有效 30 天，僅供一筆已付款訂單使用；簽署後的 PDF 副本可在此下載。
A signed form is required before paying by credit card (US and Canadian cardholders only). Each form is valid for 30 days and for one paid order; the signed PDF can be downloaded here.