One doctor said I had the flu even after his scientific test said I didn't. Told him I had bronchitis. WTH did he give me the test for if he ignores the result. Two days later I'm at the emergency ward where an X-ray says I now have pneumonia. No stay in the hospital and I recovered but you can bet he heard from me on my follow-up appointment.
And I refused to pay for that appointment. Never heard back from the office about not paying the out-of-pocket.