Main Street Anesthesia review: Overpayment not received

I overpaid $73.81 to Main Street Anesthesia on 7 October 2021. They told me I had overpaid. I have spoken to them on the phone literally 20 times or more. They are very nice. Oh that check was cut in Dec. Then they tell me that the entire batch of checks never arrived for anyone. Then "well no one else asked for their money back" Well I am! I have been dealing with these people for a year now and STILL nothing. I have spoken to various people. Mostly a woman named Char. She has been nice but I have gotten NO money back. They tell me they are "escalating to a supervisor" . Nothing. No phone call. I have the cancelled check where I paid. I have phone records of the calls I have made.