If you have a complaint or inquiry, use the Missouri Public Service Commission's Electronic Filing and Information System (EFIS) by following the link provided below:"
" Electronic Filing and Information System
If you need help in EFIS, once at the main EFIS Welcome, select the Help button on the left for a complete list of instructions.
If you are unable to use EFIS, you can fill the form provided below that will send us an email. You may be required to mail us a copy of your bill, with the disputed charges circled or marked. Please mail a copy of the bill with a letter of explanation to:
Missouri Public Service Commission
PO Box 360
Jefferson City, MO 65102
Attention: Consumer Services Department
You may also dial our toll-free number at 800-392-4211.
Please fill in as much of the form as possible, and click submit.