Wellcare review: Medicare advantage

I was taken by ambulance to Dr. Phillips Hospital in Orlando, Florida on February 27, 2022, where I was treated in isolation for Covid-19. I was insured by Well Care Medicare Advantage by which I was assured that I would be covered in full for ER and ambulance anytime I was admitted to the hospital as a result. I was indeed admitted and stayed in that hospital. Yet they have for months now refused to pay the bill and have been dismissive of me. The $250 is worth much more to me as a 71-year-old man who is now medically disabled. On top of that Well Care denied me surgery my doctor said was medically necessary for me so they have too much nerve calling themselves a health plan