Buying and selling credit cards does not constitute a crime, but it may involve the crime of obstructing credit card management. Forged credit cards, in any of the following circumstances, shall be deemed as "serious circumstances" as stipulated in Article 177th of the Criminal Law:

(1) Forging more than 5 credit cards but less than 25;

(2) Forged credit card balance and overdraft limit of more than 200,000 yuan but less than 6,543,800 yuan;

(3) Forging more than 50 blank credit cards and less than 250;

(4) Other serious circumstances.