Lancet refuses to go the extra mile!!!!!!! 6 Months still not resolved.

I am disgusted in the service Lancet gives there customers. My query has been going on since April 2020 and we are now on the 10th of September and it's still not sorted out. I have been for blood test at the Arwyp Lancet. The wrong ICD10 codes was on my form... Long story short my medical aid paid the account in full from my savings account... I have asked Lancet to please send me an amended statement with the correct ICD10 codes on so that I can get my medical aid to reimburse me. Lancet has sent an updated statement with written in ICD10 codes which my medical aid refuses to accept. Lancet has told my medical aid and broker that the medical aid needs to accept the amended statement they way they have sent it and I am still no where with this. Is there someone at Lancet Accounts department that will go the extra mile to get my statement rectified the way it should be so that my savings account can be reimbursed and not tell me every time a team leader will look into it... it's now been almost 6 months and still no real help from lancet... Can it be so difficult just to rectify the statement with ICD10 codes even though it's archived????