1. You can ask the other party to return it. If negotiation fails, you can report it or bring a lawsuit to the court to safeguard your legitimate rights and interests according to law.

2. Negotiate. If negotiation fails, you can call 12320 to report.

3. Call the public security organ to call the police or report directly to the local public security organ. Legal basis: Article 49 of the Law of People's Republic of China (PRC) on Public Security Administration Punishment, whoever steals, swindles, robs, extorts or intentionally damages public or private property shall be detained for more than five days and less than ten days, and may also be fined less than 500 yuan; If the circumstances are serious, he shall be detained for more than 10 and less than 15, and may also be fined less than 1000 yuan.