Remittance should be payable to and mailed with the completed form to: Illinois Department of Insurance, P.O. Box 7087,. Springfield, Illinois 62791.COMPLAINTS. We are committed to providing good quality services. We recognise that a client may not be satisfied with the service provided. Refer to the actual policies for review of all terms, conditions, exclusions, premium charges and specific forms. Insurance Proposal Form: Filling up important details in the insurance proposal form is half the insurance process completed. If coverage is desired, please forward a copy of the contract with the pyrotechnic and complete our loss control questionnaire. Beginning in 2020, the Secretary of State will begin an Electronic Liability Insurance Verification program for vehicles registered in Illinois.