Business ProfileforAveanna Healthcare

We received an order of supply and due to the costs decided to return them and not use the service or supply at all. Its been almost 4 years of dealing with the incompetence of their billing department. The supply was returned, we were told everything was fine and nothing else was owed. Weve been told this every time we call to tell them we are still receiving bills. I would have no problem paying something if its owed, but we returned the supply and were told nothing is old disregard the bills. I kept calling though as we kept receiving them and still told nothing is owed disregard. I received a bill again randomly months ago and again called aveanna. I called aveanna again and this time I paid the 60$ just so I didnt have to deal with this billing issue with aveanna anymore regardless of whether or not we owe because Im tired of dealing with this. This should have been resolved long ago as promised by aveanna after the first two years of calls. Now its in collections suddenly with another company. I just feel they arent resolving this issue and want to be free of what should be a very simple issue to fix.