1. **Gather Evidence**: Collect all related evidence, including transaction records, communication records, and screenshots during the trading process. This evidence will be crucial for legal actions.
2. **Consult a Legal Professional**: Seek guidance from legal professionals who specialize in digital currencies or online transactions. They can provide you with legal opinions and possible solutions.
3. **File a Complaint**: Depending on the jurisdiction, individuals can file a complaint with relevant authorities, such as consumer protection agencies, to protect their rights.
4. **Consider Mediation Services**: Some third-party organizations offer mediation services for digital currency disputes. They act as a neutral party to help resolve the issue, which can sometimes be more efficient than pursuing formal legal action.