Credit cards will not be blocked. Overdue online loans usually do not result in credit card bans because the two are independent financial products. However, overdue online loans may have a negative impact on an individual’s credit history. The specific instructions are as follows:

1. Credit cards and online loans are different financial products, provided by banks and Internet lending platforms respectively. Overdue online loans will not directly lead to the blocking or deactivation of the credit card.

2. The use and repayment of credit cards will be reflected in the personal credit record, and overdue online loan information will also be recorded in the credit reporting system. Banks will consider a variety of factors when evaluating personal credit, including debt status, overdue records, etc.

3. Overdue online loans may have a negative impact on personal credit scores and reduce credit ratings. This may affect approval of future applications for loans, credit cards or other financial products.

Summary: Overdue online loans will not directly lead to credit card bans, but will have a negative impact on personal credit records. It is recommended to repay online loans in a timely manner and maintain a good credit record.

Extended information: Overdue online loans may affect an individual’s credit record, which is a common situation in China’s financial market. According to the "Interim Measures for the Management of the Basic Database of Personal Credit Information" issued by the People's Bank of China, overdue online loan information will be included in the credit reporting system and shared with other financial institutions. In addition, China also has multiple credit reporting agencies, such as the China Credit Information Sharing Platform (referred to as the "Credit Reporting Center of the Central Bank") and Baihang Credit Reporting, etc., which provide personal credit reports to various financial institutions. Therefore, maintaining a good credit record is crucial to an individual's financial life.