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Promotion is not valid with other discounts.
Promo code can only be used once.
Promo code cannot be used together with other ongoing promo code.
Promotion is valid for masks under "HOT PICKS" which included Adult/kids - Wistech 3 Ply Surgical masks, KN95, KF94 etc.
Free mask to be redeemed is only Limited to One (1) box. Example: If you purchase 10 Boxes of Surgical Masks on your next purchases, you will only receive One (1) box of Surgical Mask.
Free mask will have to be added into the cart manually upon applying the promo code.
Wistech reserves the right to make amendments to the promotion at any time.