2. Secondly, understand the complaint channels: refer to the official website, contract or related documents of Hebei Hetong Hui Ke Education to understand the complaint channels and contact information provided by them.
3. Then file a written complaint: describe your complaint in detail in writing and attach all relevant evidence.
4. Finally, follow up the complaint: After submitting the complaint, you must keep following up and urge the other party to give a reply.