Persons served, family members, or advocates may file a grievance or complaint without fear of threat or reprisal in any form. Please fill out, date, and sign this form and submit it to the Sinnissippi Centers office receptionist or mail to Sinnissippi Centers, Inc., Customer Services, 325 Illinois Route 2, Dixon, Illinois 61021. You will be provided with a response within thirty (30) calendar days of our receipt of this report.