Engage in business activities in the name of other companies.

It is illegal to engage in business activities in the name of other companies and use their business licenses. Secondly, engraving the official seal privately constitutes the crime of engraving the official seal privately. The crime of engraving the official seal privately cannot become a unit crime. As for your other losses, you can file a civil lawsuit for compensation. But I suggest you have enough mobile phone evidence, including the evidence you lost. If the evidence of your loss is not good, you can collect the evidence of the other party's profit. In this way, you can recover your loss. Whoever embezzles another person's business license to conduct business activities, the amount of which reaches the standard of criminal investigation, violates the provisions of Article 225 of the Criminal Law and is suspected of illegal business operation, and shall be investigated for criminal responsibility according to law. Those who fail to meet the standards of criminal investigation shall be given administrative punishment by the industrial and commercial departments. Article 225 of the Criminal Law Whoever, in violation of state regulations, commits one of the following illegal business operations and disrupts the market order, if the circumstances are serious, shall be sentenced to fixed-term imprisonment of not more than five years or criminal detention, and shall also or only be fined not less than one time but not more than five times the illegal income; If the circumstances are especially serious, he shall be sentenced to fixed-term imprisonment of not less than five years, and shall also be fined not less than one time but not more than five times his illegal income or confiscated of his property: (1) Operating a franchise or monopoly commodity or other commodities whose operation is restricted by laws and administrative regulations without permission.