Legal analysis: in the activities between equal civil subjects, it is usually not applicable to where to complain. You can ask the public security organs for help, and they will mediate between the two sides. If mediation fails, a lawsuit may be brought to the people's court. This is also the most effective method.

Legal basis: Article 3 of the Civil Procedure Law of People's Republic of China (PRC). The provisions of this Law shall apply to the people's courts in accepting civil lawsuits brought by citizens, legal persons, other organizations and their property relations and personal relations.