One-key card binding is faster and more advanced than traditional card binding. There is no need to worry about card security and information security here. You can authorize the bank to query information and bind the card with one key, which is a shortcut.

Using China UnionPay Express APP to repay credit cards is not only convenient and fast, but also free of handling fees. However, friends who have used this repayment method know that the credit card repayment of China UnionPay is limited by the amount and times, which will lead to the failure of credit card repayment.