1. Collect evidence: collect all documents, contracts, payment vouchers and communication records related to Shang Yi community to ensure that there is enough evidence to prove the investment or transaction.
2. Seek legal advice: If the Shang Yi community fails to make a reasonable statement or cannot contact them, they can consult a professional lawyer.
3. Report: If there is fraud or misconduct in Shang Yi community, you can report it to the local police station and provide all relevant evidence.