The questioner wants to ask, "What happens when the CCB credit card supplements the supporting documents twice?" Work status, income certificate, company business card, work badge, etc.

2. Second supplementary supporting materials: The bank needs to further understand the applicant’s information during the review process and requires the applicant to supplement. The purpose of supplementary supporting materials is to allow the bank to have a more comprehensive understanding of the applicant's situation so that it can make more accurate review decisions.