A Subrogation Letter should clearly state the facts of the case, including details of the incident (e.g. Use the "Go to complaint portal" button to visit the Insurance Department Complaint Portal to file online.The portal will help you submit your complaint. Report an Auto Loss. This process where your insurance company seeks compensation from the atfault party is known as subrogation. Legal glossary page on subrogation including definitions, examples, and important information specific to Utah and what you are entitled to. Cozen O'Connor is the world's leading subrogation and recovery law firm. We founded our subrogation and recovery practice in 1970. The Plaintiff, above named, complaining of Defendants, above named, alleges and says as follows: 1. This case arises out of a 2013 rental vehicle accident in Rapid City, South Dakota, which came to implicate the Graves Amendment, a federal law.