How do i contact the illuminating company customer service? For additional help regarding your bill, call 800-589-3101. If you’re facing unexpected financial difficulties that might result in you not being to pay your bill on time, call The Illuminating Company Customer Service at 800-589-3101 immediately. This will help you keep your electricity on during your troubled time.Where does the illuminating company stand? The Illuminating Company Stands By Its Utility Customers. Headquartered in Cleveland, Ohio, The Illuminating Company provides electricity transmission and distribution to the northeast Ohio region.What are the hours of operation for the illuminating company? The Illuminating Company follows a strict schedule and their doors are open from 8:00 AM to 6:00 PM, Monday to Friday. There is a power outage in my street. How can I report it? You can report a power outage by calling 888-544-4877, texting OUT to 544487 (LIGHTS) or filling out the online form.How do i pay my illuminating company bill? Check out the links below or call 800-589-3101 to learn more about bank payments. The phone line is open from 8:00 AM to 6:00 PM, Monday through Friday. To pay your bills in person, simply visit one of the authorized locations that accept bill payments made out to The Illuminating Company.