Legal analysis: If the credit card cannot be repaid due to criminal detention or imprisonment, you can entrust others to handle it on your behalf. Because the debtor is suspected of committing a crime, his personal freedom is restricted and he cannot be exempted from the responsibility of the credit card. Banks have the right to sue. It is suggested that the parties actively communicate with the bank or contact their family and friends to handle it on their behalf, otherwise it may constitute credit card fraud.

Legal basis: Article 195 of the Criminal Law of People's Republic of China (PRC), whoever commits fraud by letter of credit under any of the following circumstances shall be sentenced to fixed-term imprisonment of not more than five years or criminal detention, and shall also be fined not less than 20,000 yuan but not more than 200,000 yuan; If the amount is huge or there are other serious circumstances, he shall be sentenced to fixed-term imprisonment of not less than five years but not more than ten years, and shall also be fined not less than 50,000 yuan but not more than 500,000 yuan; If the amount is especially huge or there are other especially serious circumstances, he shall be sentenced to fixed-term imprisonment of not less than 10 years or life imprisonment, and shall also be fined not less than 50,000 yuan but not more than 500,000 yuan, or his property shall be confiscated: (1) using forged or altered letters of credit or accompanying documents and vouchers; (2) Using an invalid letter of credit; (3) defrauding a letter of credit; (4) fraudulent activities of letters of credit by other means.