My XXXX doctor for the last four years billed the wrong insurance company ; then before they billed me, or called me, or talked to me when I had quarterly treatments at their office, turned me over to a collection agency. 

We called them and talked to three staff members in services, billing, and authorizations to explain the issue. They ignored us. 

I paid the whole bill out of pocket and will wait for them to bill the right insurance company so I can get reimbursed. People with less money that I have would not have this luxury. 

Both companies administration services are incompetent.