I'm on workmen's comp?

My surgeon who's care I'm under wanted me to have injections, so I made an appointment to have them done . My primary dr is against it and tried to talk me out of it. I said no. The surgeon wanted to try injections before fusion. My primary suggested some other surgery and offered to call the surgeon and asked " if the surgeon agrees to do this other surgery would you rather have the surgery then the the injection I replied yes. Well my primary left a voicemail letting me know he left a detailed message about the other surgery and he'd get back to me and if the surgeon said no to this surgery he was gonna list me as P&S . Well I never heard back from my primary so I called the surgeon because my injection date passed with no word. When I called they said my primary told them I said I didn't want the injection and the other surgery wouldn't help me. Now the the surgeon says he can can no longer help me and I should be seen somewhere else! My question is can a dr legally cancel my injection without my say so? I still have his voicemail stating he was calling for surgery only. What to do?