I am currently dealing with a rescinded approval that my insurance company sent me in writing that gave prior authorization for the one medication that provides better quality of life. They had no issues covering it until January 2025 after over four years of paying for my monthly prescription. I am a Medicaid, Medicare patient. On Thursday, they [insurers] sent me another letter denying and taking back the approval, plus they gave me a window of 72 hours in which to appeal. My doctor's office is not available on Friday, Saturday or Sunday, so I don't know what or how to proceed. This is extremely stressful and causes great duress. How can it be legal to approve and deny in writing within a few days?