I ran out of medication because of incompetence

I submitted my script on 29 July 2020. I emailed on 5 August because I hadn't heard anything, only to be told that my medication had not been delivered because I hadn't paid a fee I was magically supposed to know about. I paid immediately and responded asking for the process I was supposed to follow and got ignored. Today I have been informed that I will only receive my medication on Monday. I have run out of medication for my potentially life-threatening condition, and am having to take time off work due to the lack of medication. Monday is not good enough. Disgusting