1. Log in to official website of the Ministry of Industry and Information Technology, find the "Complaint Reporting" entrance under the column of "Service Center" or "Online Handling", fill in relevant information and submit a complaint.
2. Call 1232 1 to report the complaint and complain to the Ministry of Industry and Information Technology.
3. Send an email to the complaint mailbox of the Ministry of Industry and Information Technology of complaints@miit.gov.cn to make a complaint.
4. Complain to the Administration for Industry and Commerce or the Consumer Association where the Ministry of Industry and Information Technology is located.