Legal analysis: After being sentenced, the credit cards of inmates cannot be used normally for the time being, and they must go through the account cancellation procedures. Since it is inconvenient for inmates to handle account cancellation procedures, others should do it on their behalf. The agent must hold a power of attorney written by the principal (in person) and bring the original valid identity document to handle the account cancellation business. The bill should be paid off before canceling the account.

Legal basis: According to Article 1 of the "Decision of the Supreme People's Court and the Supreme People's Procuratorate on Amending the Interpretation of Several Issues Concerning the Specific Application of Laws in the Handling of Criminal Cases Obstructing the Management of Credit Cards": one of the following circumstances exists: shall be deemed to be 'for the purpose of illegal possession' as stipulated in Paragraph 2 of Article 196 of the Criminal Law, unless there is evidence to prove that the cardholder does not have the purpose of illegal possession: (1) Knowingly knowing that he has no ability to repay the loan A large amount of overdrafts cannot be returned; (2) Overdrafts after applying for credit cards using false credit certificates cannot be returned; (3) Overdrafts are avoided by hiding, changing contact information, etc. to avoid bank collection; (4) Escape and transfer funds, concealing property, and evading repayment; (5) using overdraft funds to carry out criminal activities; (6) other illegal possession of funds and refusing to return them.