The referral coupons apply only to Trade Assurance orders with featured suppliers/products marked red as below on Alibaba.com product detail page , and each coupon is valid for 30 days starting from the day you have received the coupon.
If you have accumulated multiple coupons of the same value, you can only use one of them with the same supplier. The coupons cannot be used in conjunction with any other coupon from the supplier, but can be combined with discounts or coupons that are provided by Alibaba.com.
