If you are really cheated, in terms of the amount, more than 3,000 yuan already constitutes a crime of fraud. Criminal cases are under the jurisdiction of the public security organs at the place where the crime was committed. You can report the case to the public security organ of the place where you were defrauded (the place where the property was delivered). Call for investigation. Is there any evidence or indication that this is a fraud group and it is continuing to commit crimes? And between you and the liar, is there any evidence that can help you find out the identity and position of the other party? The more things that help solve the case. The grassroots police cannot help with this, as their powers and abilities are limited.