Active care plan PMB benefits

I received letter ref, Bon988NMR/*** from bonitas Medical aid. This was my approval that my care plan is active from Jan 2022 to 31 Dec 2022 under the PMB care plan. I called in while I was still receiving treatment from tigerberg hospital about the plan being activated for treatment from one of the network service providers. After going from one to another person I was assured that the treatment and all that I need, including medicines will be available under the plan. I proceeded to exit the state hospital based on the written confirmation and telephonic. The doctor used the letter I provided to proceed with setting up my medication needed to continue with the treatment I'm in treatment at the NRC Cape Town N1 city. I received a notice that my application for the medication has been declined because of waiting periods. Why are you playing around with my situation. You sent a letter to say I have an active care plan. I will have to also take this up with the authorities. This is highly inappropriate behavior of a business.