Coventry Health Care Failure to refund me for urgent care payment after I already have coverage. London KY

On February 14th 2015 I went to an urgent care center. At the time I was under the impression that my coverage didn't start yet, so I paid out of pocket $99.00.  After further investigation I  discovered that I had coverage.  So since Feburary 2016 to present, I have been trying to get a refund for $99.00.  I had sent numerous emails and made phone calls only to get the "run around".  At one time I was told I wasn't covered then after another phone call I was told i should expect a refund check in 5 business days. That call was in 04/15.  I then did a follow up call in 05/15 and still "lip service".  I then sent an email requesting the refund for $99.00 for the 02/15 visit or a refund of my premium payments for 12/14,01/15,02/15 @ $55.39 for a total of $166.17.  Still waiting for a response.