1. Contact the Quality Improvement Department at 860-358-6151. Office hours are Monday through Friday am - pm.Middlesex Management has a call center to assist you with your needs. You may select any person of your choice to be notified promptly of your admission to the hospital. A complaint must be filed in the Office of the Special Civil Part of the county where at least one defendant lives or where the defendant business is located. We can provide you with samples of court forms that are available. • We can provide you with guidance on how to fill out forms. Complaint forms are currently available in 11 languages. Make a maintenance or customer service request through our resident portal. Residents can login to our portal to submit requests online.