If you need to upgrade or apply for a platinum card, you need to bring your original identity certificate, work certificate and financial documents and go to the business outlets of China Merchants Bank in person. If you are a sunflower customer of China Merchants Bank, you can print a sunflower running bill for nearly three months or provide a daily deposit certificate through the teller of China Merchants Bank branch, or you can contact the corresponding account manager, who will issue a recommendation certificate to help you apply for a Platinum Card.