Cannot resolve the simplest problem

After my wife had a cesarian section at Sandton Mediclinic, the third day of hospitalisation (i.e. the hospital bill) was rejected. This was due to an administrative error in relation to the pre-authorisation code not having been correctly recorded on one or other system. The error was on either Sandton mediclinics side or Discoveries (after engaging with both of them I am fairly certain the error lies with Discovery). Despite the error being of a trivial administrative nature, a minimum of four telephone calls and two formal complaints (over a period of two weeks) have yielded no result whatsoever.

I have phoned and received the same empty promises from each of the consultants I have spoken to. Even formal complaints are simply ignored. Until this issue is resolved I am unable to submit a claim to the gap cover (which it is fortunate that I have, considering the substantial shortfall in the payments received from Discovery).

I am almost certainly going to be changing medical aid providers.