Lack of accountability and proper feedback

I submitted a pre-authorisation form for Natural Child birth (ICD - 2614). I received feedback from Discovery that they will only pay less than half the amount quoted. When I called to query, I was told there was a mistake on the letter I received from them. I should be covered for 200% and not 100% as it reflects on the letter. I was informed that I would receive an amended letter within 24 to 48 hours. That never happened. I called the following week to find out the status only to be told that there was no trace of an amended letter and the original letter was correct. I asked what the actual scheme rate was for the procedure but no one at Discovery wants to provide the amount. Surely they have an actual amount to work with. Discovery has refused to give me any information in writing. They keep asking me to send in a pre-assessment form. I have done it, that is where the problem started. Everytime I call Discovery I get a different story. I have laid a complaint with the Medical Schemes Council and the Consumer council. As a paying consumer I should be able to get information pertaining to what I am paying for.