How to file a complaint against China Guangfa Bank for making random calls and sending harassing messages?

How to complain about Guangfa Bank making random calls and sending harassing messages:

1. Directly inform Guangfa Bank: Your phone calls and text messages make me feel very uncomfortable, and I hope this behavior will stop.

2. Call the customer service hotline of China Guangfa Bank to make a complaint.

3. Call the police: If the harassment is illegal or criminal, you can report the case to the local police and provide relevant evidence and information.