If there is no filing information for the issued product, it is illegal fund-raising, and you can call the police, and the manager needs to bear criminal responsibility. If the manager loses contact, the police can intervene in the investigation.
If there is filing information, the manager may jointly sue the manager for compensation for breach of contract caused by breach of contract in business, and the manager shall bear civil liability. Even if he loses contact, the court can handle it, don't worry.