The complaint telephone number of the heating company is 123 19.

The most ruthless way to complain about 12345-the "12345" hotline upgrade. For example, a county-level city in Shandong Province can call "68 12345" for feedback. If it is not properly solved, you can call the hotline of prefecture-level city, such as "0534- 12345" for feedback. If you are still not satisfied and need to file a complaint, you can call the provincial hotline "12345" to explain the situation.

12345 service hotline is usually used for:

1. Public service information consultation on administrative functions, responsibilities, policies and procedures;

2 complaints, opinions and suggestions on administrative management, social management and public services;

3. Non-emergency management and service for help within the scope of administrative functions and powers;

4, citizens, legal persons and other organizations to endanger the safety of people's lives and property, endanger the safety of public property, affect the economic and social development report;

5. Praise the efficiency and administrative effectiveness of government departments and their staff.