<prompt> Human: I was diagnosed with Rheumatoid Arthritis when I was 23 with no previous health issues, and had no idea how to navigate health insurance. I called my company and asked where to go for a rheumatologist and bloodwork that was in the lower tier of cost, and they told me to go to a certain hospital. Come billing time, I find out that the RHEUMATOLOGIST was in that tier, but the routine bloodwork at the same hospital was in a much higher tier for some reason, and they charged me over 2 grand for it. This was about two years ago. At the time, I didnt really understand that theyd made a mistake seeing lots of posts here about the horrors of American healthcare, I thought that was just the cost and there was nothing I could do about it but now that I have a little more experience and knowledge, I am pretty frustrated - I feel like I was taken advantage of as a young consumer, and as a social work grad student paying my own way plus high medical bills, Im pretty poor and it would really like to recoup that money somehow.Is it just too late? Even if there is a deadline to submit a complaint, could I petition for an exception? Ive learned a LITTLE more but its honestly still pretty confusing and stressful for me to try to handle insurance companies, and I could use some advice.  <response>: If you already paid for it, its probably too late. 