I'm in Louisiana, US. Do you mean write a letter to my 2nd Orthodontist? I already tried to make amends with him, but they said they won't/can't take me back. I

I'm in Louisiana, US. Do you mean write a letter to my 2nd Orthodontist? I already tried to make amends with him, but they said they won't/can't take me back. I tried to see other Orthodontists local to me and the only other 2 which are nearby said no. I can't afford a lawyer right now.