Disappointing service

At the beginning of the year I gave birth. All was fine and I was very happy with the service i received from my medical aid as all my expenses were paid. The problem began when the 6 week check up came. I took my baby to the pediatrician and I went to my gynae for our respective check ups. The pediatrician was paid directly from my Maternity Benefits. I had opted to pay for my gynae visit cash as I knew the gynae bill would be expensive if it was claimed directly from the medical aid was to pay and I would have exhausted my medical savings. This was before I knew that I was covered for my six week checkup on my Maternity Benefit. I only found out when i received notification that the pediatrician was paid from maternity benefit and I then inquired about what other maternity benefits I qualify for. I was advised that I could claim the money I had paid and it would be refunded from my Maternity Benefit. I submitted all the necessary documents only to have my claim paid from my MSA. I queried this and was advised that the ICD code was incorrect. I requested and amended statement from the gynae and resubmitted....still the claim was not paid from Maternity Benefit. I sent several other queries and no solution. I even asked what ICD code the gynae would need to put in in order for the claim to be paid from Maternity Benefits but no one seems to want to give me any assistance. I do not work in the medical professional and as such I would not know what ICD codes to use and I would assume that when I ask my gynae to amend the code to reflect that I was claiming for the 6 week check up then they know what to put in. Why then should I be penalised for things I know nothing about and the people that know do not want to assist. I should get what I pay for. I will forfeit something that is rightfully mine just because I do not know what the correct ICD code is.