I am really disappointed on LAHealth medical aid

I am really disappointed on LAHealth medical aid. I am lupus patient and I am on chronic medication for four years now. All of sudden is no longer the full amount for my medication Mycocept, it’s only paying R1000 over +_ R6000 that it has been all along. Now the medical is only paying for Micoimune in full which is +_ R2600 but the problem is that medication cannot be found in all the pharmacies and even their suppliers. Nothing. Please note that I am lupus patient that I can’t survive without the medication