12345 citizen service hotline is based on too many citizen government service hotlines. In order to make it easier for citizens to remember, all provinces and cities in China take the service hotline to connect to 12345, and then transfer it through 12345 hotline center according to the specific situation.
You should be able to find the complaint telephone number or customer telephone number of heating enterprises on the Internet.
Call a government department, such as the heating office or the mayor's hotline.