Legal analysis: If the training institution does not refund the relevant fees, it is generally a civil dispute, and it is useless to call the police. It should be solved by filing a civil lawsuit. If it involves fraud and other acts, you can call the police.

Legal basis: Article 266 of the Criminal Law of People's Republic of China (PRC). If the amount of fraud is relatively large, he shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or public surveillance, and shall also or only be fined; If the amount is huge or there are other serious circumstances, he shall be sentenced to fixed-term imprisonment of not less than three years but not more than ten years and shall also be fined; If the amount is especially huge or there are other especially serious circumstances, he shall be sentenced to fixed-term imprisonment of not less than 10 years or life imprisonment, and shall also be fined or confiscated. Where there are other provisions in this Law, such provisions shall prevail.