Life Healthcare overcharge

What a pity that it is not possible to give a minus 5 score. A score of 1 is too high. My brother who is 74 years old and has no income has been handed over to a debt collector. I pay his medical aid. Here is an example of 1 of the charges made. On 1 of the detailed claim lines, he was charged R1,102.00. Discovery paid R81.20 and the reason given is that is the agreed rate between Discovery and Life Healthcare. This is only 1 example, the total amount of the overcharges amounts to R16,000 +. Even Discovery says that we don't need to pay this.