1. Negotiate with the institution for refund, and both parties will make concessions to reduce the consumption of time and money cost caused by litigation.
2. Complain to the relevant departments: If the educational institutions still refuse to refund the fees, they can complain to the local education authorities or consumer protection agencies. These departments usually have special channels to deal with such problems.
3. Legal channels: None of the above measures can solve the problem, so you can consider seeking legal help. You can consult a lawyer to find out whether it is necessary to file a lawsuit. If there is a clear arbitration clause in the contract, you can also consider applying for arbitration.