The Ministry of Industry and Information Technology's complaint phone number is 12300; provinces, autonomous regions and municipalities directly under the Central Government telecom user complaint hotline: provincial capital cities (municipalities directly under the Central Government) telephone area code + 12300, Beijing is: 12300.?

The Ministry of Industry and Information Technology's job responsibilities are:

Responsible for work related to the construction of a strong network, and promote the implementation of broadband development; responsible for the management of the Internet industry (including the mobile Internet); coordination of the construction of telecommunication networks, the Internet, and private communication networks, and promote network resources *** build **** enjoy.

Responsible for the construction of network and information security guarantee system in the field of information and communication; formulate network and information security planning, policies and standards for telecommunication networks, the Internet and industrial control systems and organize their implementation, strengthen the network security review of telecommunication networks, the Internet and industrial control systems; formulate policies, norms and standards for the management of telecommunication network and Internet data security and organize their implementation; responsible for network security protection, emergency response management and disposal.

According to Article 41 of the "Regulations of the People's Republic of China on Telecommunications", telecom service operators shall not engage in the following behaviors:

1. Refuse, delay or suspend telecom services to telecom users without justifiable reasons;

2. Make things difficult for telecom users by improper means or retaliate against telecom users who complain.