After being a patient for 20 years they stopped me...

After being a patient for 20 years they stopped me as a patient do to a Bill that they sent a certified letter that was returned to them. So obviously I didn't get. Also they claim they called me last time I knew my cell was the best contact not my home while I work too during the day. I even offered to pay the $100 and they still wouldn't reinstate me as a patient. Very disappointed liked it better when my Dr was in an office of 3 you don't get calls back until day or so later. I liked when I would get the same nurse who knew you and not someone different all the time. I know if I could speak to my Dr personally he wouldn't of approved of my situation. But I'm not fighting to get back in a place that in the last couple years has made me uncomfotable.