1. Collect evidence: collect all evidence related to AIA Qian Sheng's fraud, including contracts, payment records, communication records, etc. These evidences help to prove rights and losses in the process of safeguarding rights.
2. Seek legal aid: consult professional lawyers and ask them about the possibility of protecting their rights and interests. Lawyers can provide legal advice and help formulate appropriate rights protection strategies.
3. Reporting and investigation: Report the case to the local public security organ and provide the evidence you collected. The police will investigate and may take corresponding actions to protect rights and interests.
4. Seek media exposure: If necessary, consider exposing Qian Sheng's fraud to the media. The exposure of the media may attract more people's attention, thus increasing the pressure of safeguarding rights.
5. Participate in rights protection organizations: Find other victims who have similar experiences with friendly Qian Sheng, join rights protection organizations or online communities, and act together. Collective rights protection may increase the strength and influence of rights protection.