Discovery non assistance with required sleep apnea machine

Good day

I was diagnosed with Sleep Apnea (chronic condition) last month. The external machine costs R15000 and was told that discovery could assist with payment:

I was refered by discovery to: customer service pmb's, chronics, ***. for my Dr to submit a motivational letter 1) I, broker and doctor have spent hours being forwarded from one department to the next 2) My doctor sent a motivational letter to: *** (12 April). Response time was supposed to be up to 3 days from another department. This never happened. 3) Discovery has been giving me my doctor, broker hours of uninformed misinformation. At the price I pay for my Discovery membership this is not suitable as from the doctors report it is very clear that the machine is necessary to treat my chronic condition.