1, direct contact with institutions: First of all, you can try to contact online education institutions directly to reflect your problems or dissatisfaction. You can find their official website or contact information, email them or call them.

2. Complain on social media: If you can't solve the problem through direct contact, you can post a complaint on social media platforms. For example, complaints can be posted on platforms such as Weibo and WeChat, as well as the @ official accounts of relevant institutions or departments, so that they can see and handle complaints.

3. Complain to the relevant departments: If you think that the online education institutions are suspected of violating the law or regulations, you can complain to the relevant regulatory authorities. For example, you can complain to the local education bureau, industrial and commercial bureau, consumer associations and other departments.

4. Seek legal aid: If you think your rights and interests have been infringed by online education institutions, you can seek legal aid.