Where should i take my child to for her cancer treatment

Hi my daughter was dignosed with brain tumour nd i was referred to unitas hospital because thats the only hospital have peads oncology around where i stay,,oncology Doctors wrote the motivational letter to discovery that my daughter need to take treatment from unitas hospital but still discovery was declining...i called discovery myself to where i can take my child where thy will pay in full nd was told by the lady dorah or Dorothy tht why cant i take my child to steve biko because thy dnt have any hospital that my child can go to that have peads oncology ...fine there nd there Drs where begging for discovery to pay my daughters opetations since they had to remove timour time and again because it grows very fast we speak am deep in with corpayment ,to cut story short on 20.12 2019 my child got very sick i took her to unitas which is where she normally attend they checked my daughter to a point that they need to admit her thy called discovery for autorisation but discovery refused my child spent almost 6hours on casualty for an approval from discovery...so because i was desparate nd my child needed a serious medical attention immediately dr from unitas decided to call another hospital were he can refer my child he called medforum clinic and muelmed hospital they also refuse to take my child for what good reason i dont because they are part of my network hospital....am realy dissapoited on how i was treated by discover ,medforum and muelmed if it wasnt about Eugene Marias hospital taking my child i dont know what could happend to my child....question to discovery where must i take my child to for her cancer treatment????