Awful service. Medication not delivered

I cannot believe the terrible service I’m getting from pharmacy direct. It’s scary to think that they are responsible for a service that can affect a persons life. They processed my request for my chronic meds on the 23 October 2022 with my medication. Two days later I called them to find out when they would deliver and they said they can’t give me an exact date. It is now the 27 October and I am still waiting for my medication. My medication is now finished I don’t know what to do. Today I called them again and they **** and said the driver came to deliver and couldn’t get hold of me. I never received any missed call. I have also been on a WhatsApp conversation with them since 11am and they are not resolving the issue. This is really frustrating. The service is horrible. I’m quite sure I don’t have to deal with this especially with something that could be life threatening.