Always Out of Stock

I am really disappointed in the new Dischem at Malvern Park. They have had certain items on promo for this month such as "pronutro", and they have not had any stock for the full duration of the promo. I have visited the branch on 6 occasions since the promo began, and I keep getting told that it is coming next week and the blame is shifted to Dischem DC in that they don't apparently have stock. If that is the case, why run an item on promo if you don't have it???