"Caution👀: Why does it say ""Coupon code is invalid"" after entering the Promo Code?

1. Please check no space in between the Promo Code
2. Upper/ Lower case only (case sensitive)
3. If issue persist, please re-enter again after 20 minutes"    

Terms and Conditions
This offer is eligible to Watsons Hong Kong eShop only.  Only for MoneyBack members.
This offer is only valid from 1 Oct 2024 to 8 Oct 2024, MoneyBack Member purchase selected Tru Niagen products:
***** Enter promo code 【TN12】can enjoy 12% OFF *****

While stocks last.  Each MoneyBack Member only can use the promo code ONCE. This discount cannot be used in conjunction with other promo codes.  
This offer cannot be used in conjunction with MoneyBack Member discount offers. This offer is not applicable to MoneyBack Thankful Promotion, MoneyBack Member Day, or any MoneyBack Member Extra Discount Day. Not applicable to express delivery service; calculated on a single invoice.   
In the event of disputes arising out of this promotion, the decision of Watsons shall be final.