Why didn't the anti-fraud center remind you to prevent fraud, but the police station called to remind you to prevent fraud?

Normal. It shows that the publicity of the local anti-fraud center is in place. At present, in addition to the anti-fraud center of the Public Security Bureau, police stations are also responsible for publicity, reminding everyone to pay attention to account security, not trusting strangers' transfer requirements, and installing the national anti-fraud App in time. So it's normal for you to get calls from different departments.