Really bad service

Really the most terrible company to try and deal with. My father and mothers chronic medication delivery is a month late for delivery. My fathers insulin is finished and his blood pressure medication is now also almost finished. Between my father and me we have emailed, phoned, WhatsApp, Facebook and tried on their PadiChat to get his medication delivered. Last week Friday they phoned and said they have dispatched the medicine for delivery. On Monday they phoned to hear if it was delivered on Saturday, but there was no delivery made and then Pharmacy Direct could not trace the parcel. On Monday afternoon they phoned again and said that the medicine was dispatched (again) and will be delivered yesterday, but no delivery has been made and it is now Wednesday. There is just no way to get them to deliver the medicine. Really don't know what to do anymore.