Bonitas....bad service

Medical aid number *** I recently shared a post about the bad service I am receiving from Bonitas. The sequence of events as follows. My son is a student and they ask for an updated letter from institute. Before we could arrange the letter they sent another messages advising that he is still on as a student. So we left it thinking it was ok.. We then received another email again stating he has been terminated and they apologies for sending the letter confirming that its still ok that he was on the medical aid as a student and advised it was sent in error. They asked for the letter again and we advised he is on a learnership and submitted all the docs to them. They they advised that he cannot be on the student rate as he is now obtaining a small salary. It was agreed we will pay the full rate for him and ask them to reinstate him as a member. The time frame was approx two months if we remember correctly that he was not on the medical aid. Then we receive notification we owe R5000 even though he was not on the medical aid.. how is this possible. We received a phone call 2 days ago and the consultant casually stated thats how it goes...very unprofessional....he advised he will ask his superiors and come back to us....no feedback frkm his management. I am shocked at the service...very very disappointing and still waiting to resolve this issue as to why they debited R5000 without advising us further.. we should not be charged for the time he was not on the medical due to incompetence of their staff