There are four digits on the signature strip at the back of CCB credit card, which are the last four digits of the card number. There should be three digits behind it, which is the real verification code.

If there is no three-digit verification code, then call the customer service center and the customer service will handle it accordingly.

If the card number, name, expiration date and verification code of the credit card are complete, you can book air tickets, hotels and shopping online (shopping is only for some businesses, but now it is rare in China, usually abroad).