Claim not Paid for a Dr treating me for almost a Decade

I suffer from a Chronic condition which I have had the same Dr treat me for almost a decade now and he has taken very very good care of me such that I have never, not even once since he started treating me got admitted to Hospital or fallen gravely ill because of my Chronic condition as he takes very Good care of me. Upto now his claims where being paid fine with No issues even when I was forced to move to Bonitas in 2016 when I changed employment his claims were paid just fine and now all of a sudden Bonitas is not paying his claims due to some referral that they now need that was never ever required before. As to the purpose of why now a referral is required I don't know nor do I understand or see its value because all the GP would be doing is just giving approval to that he referred me to a specialist.

I find this to be totally unacceptable and playing with Chronic Patients lives as we do not just choose to go to certain Dr's is because 1. They are good at what they do 2. They most likely started treating the chronic condition to begin with and have a full History of what is going with the Patient.

if this is Bonita's way of tying to get us to move Dr's and go to Cheaper Dr's that they now want us to go to it is not only appalling but grossly negligent. I do not go to the Dr that I go too by choice I go there because he is the best at what he does and he has taken care of me from the beginning of my diagnosis and I WILL NOT MOVE DR's because guess what I got Misdiagnosed by a GP in the first place and almost got given incorrect treatment at an incorrect time. I will rather Move medical Aids first before I am forced to move my DR.