1. Contact Serene Education Customer Service to consult the refund process and conditions, and submit relevant refund application materials. You can consult the application by phone, email, online customer service or in person.

2. If Haiyue Education fails to actively handle your refund application or cannot reach an agreement, you can complain to the local education authorities or consumer associations for help.

3. You can post on relevant social platforms and seek help and suggestions from other users. Sometimes the pressure of public opinion may prompt businesses to actively solve problems.

4. If the above methods cannot be effectively solved, you can consider contacting a lawyer or a legal institution to safeguard your rights and interests through legal channels.