Legal analysis: A man in Changzhou was sentenced to a seven-year fine of 200,000 yuan for maliciously overdrawing his credit card by 500,000 yuan. Whoever commits credit card fraud, if the amount is huge or there are other serious circumstances, 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 confiscated property. Criminals who surrender themselves may be given a lighter or mitigated punishment.

Legal basis: Criminal Law of People's Republic of China (PRC).

Article 67 A person who voluntarily surrenders himself after committing a crime and truthfully confesses his crime is a voluntary surrender. Criminals who surrender themselves may be given a lighter or mitigated punishment. Among them, if the crime is minor, the punishment may be exempted.

If a criminal suspect, defendant or criminal serving a sentence who has taken compulsory measures truthfully confesses other crimes that have not been mastered by the judicial organs, he shall be deemed to have surrendered himself.

Although the criminal suspect does not have the circumstances of surrender as stipulated in the preceding two paragraphs, he can be given a lighter punishment if he truthfully confesses his crime; By truthfully confessing one's crimes, particularly serious consequences are avoided and the punishment can be mitigated.

Article 68 Criminals who have made meritorious deeds such as exposing other people's criminal acts and verifying them, or providing important clues to solve other cases may be given a lighter or mitigated punishment; Those who have made significant meritorious service may be mitigated or exempted from punishment.