Disastrous discovery

I joined discovery medical aid in January 2019 few days later I saw a doctor paid cash for the gynae problems I had ans she suggested a pap smear which discovery approved.the doctor was not happy about my BP prescribed some medication. 2days later I collapse while in hospital visiting a patient and was admitted, discovery then said the doctors must fill in a form confirming it was not admitted for a precondition, they did and they refused to pay the hospital and are asking for monies owed from the medical savings as they paid from the msa instead of hospital plan. Now I'm in the verge of being blacklisted because discovery did not trust the doctors who treated me