The complaint telephone number of the National Postal Bureau is 12355.

The complaint telephone number of the Postal Administration is 12305. Postal administration and postal company, formerly known as post office, are two completely different units. Postal management department is the administrative supervision department of postal business, including the express delivery market in cities, states and above, which first appeared in 2006. The postal company originally called the post office a mail delivery production unit. The Postal Administration is a public institution directly under the central government, and the administrative establishment of national civil servants is included in the annual assessment of national civil servants directly under the central government; Postal companies are state-owned enterprise organizations. In terms of administrative subordination, the postal administration at the same level is the supervision department at the same level of postal companies and also the supervision department of express delivery enterprises. China Post Group Co., Ltd. is a wholly state-owned company mainly engaged in postal service, express logistics, finance and e-commerce. The company and its branches at all levels provide universal postal services within the scope stipulated by the state, and handle special services such as confidential communication, publication of newspapers and periodicals stipulated by the state, and free delivery of ordinary letters of conscripts, books for the blind and relics of revolutionary martyrs. China Post Group Corporation is based on the operating assets owned by the former State Post Bureau and some enterprises and institutions. China Post Group Company operates the postal franchise business according to law, undertakes the universal postal service obligation, and is entrusted by the government to provide special postal services and commercialize competitive postal services.

Legal basis: People's Republic of China (PRC) Postal Law.

Article 1 This Law is formulated in order to guarantee universal postal service, strengthen supervision and management of postal market, ensure postal communication and information security, protect freedom and secrets of communication, protect the legitimate rights and interests of users, promote the healthy development of postal industry and meet the needs of economic and social development and people's life. Article 2 The State guarantees universal postal service for the people of China and China.

Postal enterprises undertake the obligation to provide universal postal services in accordance with state regulations.

The State Council and local people's governments at all levels and their relevant departments shall take measures to support postal enterprises in providing universal postal services.

The term "universal postal service" as mentioned in this Law refers to the postal service that is continuously provided to the people of China and all users in China at reasonable charges according to the business scope and service standards stipulated by the state.