Legal analysis:

If the caller from the police station says he owes a credit card, if the caller is indeed from the public security agency, he should cooperate with the investigation.

Legal basis:

"Criminal Procedure Law of the People's Republic of China"

Article 115: The public security organs shall investigate criminal cases that have been filed Cases shall be investigated, and evidence and materials proving whether the criminal suspect is guilty or innocent, and whether the crime is minor or serious shall be collected and obtained. Current offenders or major suspects may be detained in advance in accordance with the law, and criminal suspects who meet the arrest conditions must be arrested in accordance with the law.