Lancet - Bad attitude

We have received SMS from Lancet stating that they will hand us over for collection to ITC-BA. I checked with the medical aid and an incorrect code was used that resulted in the Medial Aid not paying the bill. Lancet now refuse to resubmit the claim or contact the medical aid to rectify the problem so they can get paid. They told me they do not communicate on behalf of a patients with medical aids. This is not on behalf of a patient - this is submitting a claim. The medial aid confirmed with me that they do have funds available and will pay the account if the claim is re submitted with the correct codes.