Not receiving my Chronic Medication

On previous occasions I had problems with my chronic medication which were supposed to be delivered to me on a monthly basis, unfortunately I have a condition which could be life threatening if I do not take my medication. Eventually for my own health sake I took away my scripts from them and went to a local pharmacy as complaining to the fund and the pharmacy did not help. Recently my medical aid changed the rules regarding our chronic conditions and we are again forced to receive our medication from Pharmacy Direct and last month my medication was delivered late resulting me running out of medication forcing me to buy my medication from a local pharmacy out of my pocket because the medical aid would not cover the costs because according to them my medication was already charged by Pharmacy Direct, This month they were to deliver the medication to my doctors rooms and when I visited them on the 8th and again today they informed me that my medication was not received. I am now out of medication since the 7th of this month and my condition is deteriorating due to not taking my medication. Complaining to my medical aid also does not seem to help. PLEASE HELP!!!