Discovery Medical Aid

I have had a tumor operation, thereafter radio therapy with Dr. SAUER N1 CITY ONCOLOGY. I have been struggling with Discovery to get MRI done yearly after the treatment. Some Naidoo guy at Discovery keeps regretting me. I think it's states that when you do receive Radio Therapy one should receive a yearly MRI but in my case it Not Not happening. I feel sick and not well and have some of the same symptoms. This is crazy they really don't care all they care about is receiving monthly premium. They are bad and will not recommend them as a medical aid. I would like someone to explain to me why I am not receiving MRI yearly after my treatment. I have to fight with them over everything. It's So So bad.