After 4 visits, I was billed double of what my insurance should've been billed. They owed me $30. I received a hill for $461. I called in September when I got it. They told me the billing reviewer would look into it. Got another bill in October and my insurance rep emailed and said I should be receiving a $30 check and bill was taken care if. November I received letter from a collection company. Called the collection company and was told to call ATI. I did and again was told my reviewer would look into it. I got another letter from collection. Called ATI and again was told my reviewer would look into it. This was now November. I was told my previous reviewer was not longer there. Talk about an incompetent company.