TRYING SINCE OCT 2015 TO RECTIFY QUERY

I have had MAJOR issues with both Lancet and Bonitas in trying to sort out a problem with medical aid payment for blood tests, since October 2015, despite dozens of calls and emails between the two of them and neither party can tell me definitively what the problems(s) is/are. <br> I have a chronic thyroid issue for which I get a certain number of blood tests per year. The October blood test should have been paid out of available benefits, but Lancet submitted my account with the incorrect ICD-10 code, despite NO previous issues. Bonitas has not paid this due to the code, and now Lancet cannot APPARENTLY resubmit this claim. Neither party seem to understand the problem, and now Lancet is handing me over to creditors. <br> I have been trying since October to sort this out and I am GETTING NOWHERE. All I want is someone to handle this because I cannot. I have asked on numerous occasions for both parties to contact each other directly but that hasn't happened. <br> This is ridiculous!