1. Open the app of China Construction Bank and enter the harmonious interface.
2. Click the coupon, and then click Use this option.
3. Select the goods you want to buy, click Buy Now, and then click OK.
4. Click to pay with coupons. Beijing Shanrong Technology Co., Ltd. is a financial service platform that provides search, recommendation and information on financial products such as wealth management and loans for individual consumers and enterprises.