Novalac HA out of stock

I am extremely disappointed with the service I received from Novalac SA. Approximately 1 week ago I contacted Novalac to find out why the Novalac HA seems to be out of stock in all stores in the George area, to my dismay, the sales representative for the area advised that due to a logistical reason this particular milk will be out of stock for approximately 2 weeks. My baby of 3 months have been on this milk since he was 6 weeks old and I have tried other Novalac products, but it did not work for my baby and it caused stomach problems. My pediatrician recommended Novalac HA and my other 2 children also used this milk. I requested that they source some 800g tins and courier it to me, but Novalac management said this could not be done and suggested that I use the Novalac Allernova boxes which cost double what the HA would cost, they also said I should phone the customer service number which I did and I left a message which has to date not been returned. It is absolutely unacceptable that I now have to discomfourt my baby. I demand a prompt solution to my problem as I cannot wait 2 weeks for the milk to arrive. I look forward to Novalac SA's urgent response.