It means that the credit card limit is zero, and the credit card has been swiped to reach the limit.

Credit card limit, also known as credit card available limit, refers to the maximum amount that can be used by the credit card you hold. It includes the credit limit (that is, the maximum overdraft limit of the credit card) and the amount deposited into the credit card.

The limit of any credit card depends on the effective income and asset security value provided by the individual during the application process. The credit limit of a credit card is positively correlated with the applicant's income and secured assets, that is, the higher the income and secured assets, the higher the credit limit obtained. Therefore, applicants must provide proof of income and statements of asset security. Asset guarantees include fixed assets such as real estate and cars, as well as current assets such as savings and bonds.