Netcare Traumalink keeps on submitting wrong codes to Discovery

End of January I had an accident at a customer's house, where traumalink was contacted to transport me to hospital. On the 13th of July I got an statement with reference *** stating that the account has been outstanding that has been rejected by my medical aid for the amount of R4961,50. I sent various emails to Desiree Liebenberg, and even went to visit her. The account was not being paid by Discovery because the wrong codes were submitted by her. Today I once again got a report from Discovery still stating that the wrong codes has been submitted. This is now a major problem for me, because I am not going to pay out of my pocket for incorrect codes being submitted on an account. Can someone please help her with this, or get someone else that might be more competent. This is not acceptable