Milnerton Mediclinic Accounts department Horrible Service and Refusal to send the correct invoice

If i could rate it below 1 i would,its been an absolute night dealing with Milnerton Mediclinic.29 November i was at Emergency due to a fractured ankle upon discharge i was given a receipt for crutches and i requested an invoice to claim from my medical aid but was told medical aid will accept the receipt with no codes nothing.Todate im still stuggling to get the correct invoice with the nappi code. Furthermore im still struggling to get the amended hospital claim as the auth number provided by the medical aid is wrong .I emailed the manager requesting same and my email was ignores sitting out of pocket with school going kids yet Mediclinic doesn't care as i paid them cash on the night of my injury. They insisted on a cash payment yet im on medical aid..Never had such horrrible service from Milnerton Mediclinic