A swindler cheated me of 200 yuan. I want to get back at him. Is there any way?

Don't you have his cell phone number? You print some small advertisements, such as treating sexually transmitted diseases, and then print his mobile phone number. Or, if there is a "duck" job, leave his phone number with others. Don't you have his bank account? You post some scary information online, then blackmail some money and leave his bank number. Remember, you must do this in Internet cafes. The public security bureau is still very powerful.