No morphine tablets available at Charlotte Maxeke Hospital ( Joburg Gen.)

I am suffering from from an extremely painful cancer ie. lymphatic cancer . As an out patient at the moment I am entitled to pain reducing medication . Since 29 April 2019 their stock of morphine tablets have been out of stock. I phone the pharmacy on a regular basis , once a week to inquire if they have stock yet. The same answer every time, is that they only have the morphine syrup which is not suitable for my type of cancer .As I have an Oncologist prescription for Morphine tablets that is what I am entitled to. I have tried to phone their complaints department that is said to operate 24/7 , with no success . No answer at all. The numbers are 011-488 ***. Looks as if I am to suffer indefinitely with the constant pain as there is no solution for this problem.