Hello, I'm glad to answer this question for you. It depends on what kind of coupons you get. If coupons are provided by Unicom partners, such as supermarket shopping cards and food coupons, they can only be used by designated partners. I hope it helps you. Thank you! ! Click "Buy Now" to enter the "View Order" page, and select "Use Voucher" in "Settlement Information"; 2. For the vouchers given by the preferential activities of Unicom's online business hall, the deduction content of vouchers given by different activities is different. If you can buy a mobile phone or accessories to deduct the corresponding amount, please pay attention to the relevant introduction of preferential activities.