It might be that the coupon has already expired. There will be an expired date for every coupon. Normally, it will be one week. Please use the coupon as soon as you can next time.
① The coupon may have expired
Coupons are often time-limited. Please check the promotion details and ensure you use the coupon within the valid period.
② Usage limitations
Some coupons are single-use only, or may only apply to specific products. Please check the coupon’s terms and conditions.
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