How to use the e-Coupon? March 11, 2025 07:56 Updated Simply present the e-Coupon to the corresponding merchant to access the special offers and promotions. If the e-coupon's validity expires, the e-coupon will no longer be available to use. Related articles Why don't I have any e-Coupon in my account? Where can I find the e-Coupon? Can I delete a message in Notification Centre? How to send, edit, and receive business cards on HKTDC Marketplace App? What is e-Badge?