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
1.This offer is for MoneyBack Member only.
2. Members can enjoy $28 off a $188 purchase at Watsons Hong Kong stores by presenting the MoneyBack App or entering the promo code "CROSSBU" on the eShop.
3. The offer is valid for 14 days from the message sent date.
4. Each member can enjoy the offer once during the promotion period.
5. All Watsons cash/till coupons will be suspended.
6. This offer is not applicable to purchase of Gift Voucher, MoneyBack Thankful Promotion, Infant Baby Milk Powder(Stage 1), Prepaid Phonecards, Phonecards, All Reloading Service, Plastic Shopping Bag Charging, Redemption items, Designed Point/E-stamp Redemption Items, GLAM Haircare Products, #1DAYonly offer, Non-Discountable Products, new member promotion offer, Subscription Program, Body Check & Vaccine Package, Kai Tai Counter, Chinese Medicine Practitioner’s Consultation Services, Online Medical Service, Dietitian Consultation Services and Prescription Products. Pre Order items, Supplier direct delivery items (Including eVoucher), $1 Crazy Deal items.
7. This offer cannot be used in conjunction with extra MoneyBack Member discount offers. 
8. The offer also cannot be used in conjunction with limited time offer 12% off, Member Day extra 5% off offer, selected VIP/member offer and other promotional offers.
9. In the event of disputes arising out of this promotion, the decision of Watsons shall be final.