Legal analysis: if the training institution does not refund the money, it can negotiate with the institution for a refund, and both parties make concessions to reduce the consumption of time and money cost brought by litigation. If no agreement can be reached, a lawsuit can be brought to the court to explain the losses caused by the institution's breach of contract, request the court to judge the institution to refund the deposit or tuition fee, and may require it to compensate part of the liquidated damages. The prosecution should pay attention to the statute of limitations.

Legal basis: Civil Code of People's Republic of China (PRC).

Article 188 The limitation of action for requesting the people's court to protect civil rights shall be three years. Where there are other provisions in the law, those provisions shall prevail.

The limitation period of action shall be counted from the date when the creditor knows or should know that the right is damaged and the debtor knows it. Where there are other provisions in the law, those provisions shall prevail. However, the people's court shall not protect the rights that have been damaged for more than 20 years. Under special circumstances, the people's court may decide to extend the time according to the application of the obligee.

Article 577 Where a party fails to perform its contractual obligations or fails to perform its contractual obligations in conformity with the contract, it shall be liable for breach of contract such as continuing to perform, taking remedial measures or compensating for losses.