Complain. Complaints about Chongqing 83 education and training institutions can complain to the local civil affairs bureau and education bureau, and complaints about Chongqing 83 education official education and training institutions can complain to the local human resources and social security bureau or relevant departments of education bureau. Chongqing, also known as "Mountain City" or "Jiangcheng" for short, is a municipality directly under the Central Government of the People's Republic of China, a national central city, a megacity, one of the important national central cities approved by the State Council, and an economic center in the upper reaches of the Yangtze River.