I can provide exact information about the service contact information of CCB Credit Card Center. As far as I know, their customer service hotline is 4-82-588, which is a national telephone number. No matter where you are, you can get professional support and help from CCB Credit Card Center by dialing this number. If you have any questions about credit cards or need help, this phone is your first choice. I hope this information is helpful to you, and thank you for your attention.