What Do I Do If I Was Charged for Covered Services?

I had a blood screening done at an urgent care facility and a wellness visit at my primary care providers office. Both are in network and my insurance company says there is no charge for this service. I was billed by both the urgent care facility and my doctor. Its been three months and after dozens of calls and emails the clinic and insurance carrier and three personal visits to the doctors office the insurance company still has not paid the bills. Is their a governmental agency that I can complain to ?

On a side note the insurance company claims the urgent care never submitted the bill and the Urgent care billing center at last contact says they submitted it twice and would have to call the carrier again. My insurance company says my doctor submitted the bill but it was coded as sick visit.The doctors office on first contact referred me to their billing department who then referred me back to the doctors office. I asked them to correct it but I got another bill a few weeks later. I went to see them again and the office manager said she would have the doctor correct the code when he returned from vacation. Last week the parent company of the doctors office called me wanting to know why I have not paid the bill.

This just does not seem right to me. What do you think?