CCB credit cards cannot be converted into visa cards, and visa cards cannot be converted from other types of credit cards. If the user needs to, they can only apply for a new visa card.

Users applying for a visa card need to provide the following supporting documents:

1. Identity proof: ID card, household register, military ID and other identity proof documents accepted by banks.

2. Work certificate: the original work certificate stamped with the official seal of the unit’s personnel department.

3. Proof of income: If the salary is paid by the bank, you can directly provide the bank account number or provide a copy of the designated statement or passbook as required by the bank, and the original work certificate stamped with the official seal of the unit's financial department.