Illinois Commerce Commission - Consumer Services Division complaint filing guide
How to file a consumer complaint with Illinois Commerce Commission - Consumer Services Division for Illinois utilities.
Regulates public utilities in Illinois, including electric, natural gas, water, sewer, and local telephone service providers. The Consumer Services Division assists consumers with informal complaints about billing, service, disconnection, and utility practices.
- Jurisdiction
- Illinois
- Category
- Utilities
- Filing method
- online form
- Verification status
- verified (last verified 2026-05-13)
Response times vary by agency. Check the agency's website for its current timeline.
File a complaint with Illinois Commerce Commission - Consumer Services Division (official form)