Legal analysis: According to the relevant laws and regulations, the answer to "How to deal with credit card arrears when they are enforced" is as follows: Credit card arrears should be repaid immediately. Failure to pay back the money in time may constitute credit card fraud. If the amount of malicious overdraft is large, and all overdraft interest has been repaid before the public security organ files a case, and the circumstances are obviously minor, criminal responsibility may not be investigated according to law. If the cardholder objectively has malicious overdraft behavior, causing economic losses to the issuing bank, China's criminal law stipulates malicious overdraft as a kind of credit card fraud.

Legal basis: Article 196 of the Criminal Law of People's Republic of China (PRC) commits the crime of credit card fraud under any of the following circumstances. If the amount of credit card fraud is relatively large, he 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 confiscated property:

(a) using a forged credit card, or using a credit card fraudulently obtained with a false identity certificate;

(2) Using an invalid credit card;

(3) Fraudulent use of another person's credit card;

(4) malicious overdraft. The term "malicious overdraft" as mentioned in the preceding paragraph refers to the behavior that the cardholder overdraws beyond the prescribed limit or time limit for the purpose of illegal possession, and refuses to return it after being urged by the issuing bank. Whoever steals a credit card and uses it shall be convicted and punished in accordance with the provisions of Article 264 of this Law.