Consumer Complaints | Illinois Commerce Commission
160 North LaSalle, Suite C-800, Chicago, IL 60601
Eligibility
Residents of Illinois
Required documents
Utility bills
Proof of residence in Illinois
Additional documents may be required.
Hours
Monday to Friday, 8:30 am - 5:00 pm
888-261-4188
Voice·
TTY
217-782-4654
Voice·
Transportation
217-782-2024
Voice·
Out-of-State Callers
800-524-0795
Voice·
Consumer Services (Toll-Free)
Websitehttps://www.icc.illinois.gov
Languages
English, Spanish.
Application process
(1) File an complaint on the website, by calling 1-800-524-0795 and following the prompts, or by United States Postal Service (USPS) mail. (2) For Transportation questions call 217-782-4654 or send an email from: www.icc.illinois.gov/contactus/
Fees
No Fees
Service area
IL
Provides Informational Services about public utility services and accepts consumer complaints.
Last Assured
05/28/2025
What's Here
Providing organization
Illinois Commerce Commission
Provides Informational Services about public utility services and accepts consumer complaints.