If you are using China Merchants Bank credit card for overseas online payment, after selecting the product to be paid, enter the credit card number, validity period, and CVV2. There is no need to activate the online payment function in advance, and no password is required. If you are prompted to enter a VISA or MASTER verification transaction code, you need to enter the credit card query password. When paying through foreign websites, some websites require security verification before the transaction can be successful. It is recommended to activate the VISA/MASTER network verification service first.