If the AliExpress buyer cannot pay for the order, first make sure there is enough balance in the account and check whether the payment method is correct. If multiple payment attempts fail, you can try to change the payment method or contact AliExpress customer service for help. In addition, you can save some money by understanding the product's promotional activities, coupons, etc. before purchasing.

When purchasing high-value goods, it is recommended to choose cash on delivery or use offline payment methods to avoid unexpected losses.