Makro woodmead is the worst

I went to the woodmead branch and found a promotion which us R135 for Shampoo and conditioner. On the till, casher charged normal price and I showed her photo I took. She said system didn't updated and called a superviser. Superviser came and said she need to check. She went to the display and came back and telling me it's not updated on system and said have call the manager. I already wasted 10min and I didn't want waste more time so I asked chsher delete that Item. This is not first. Whenever I found promotion items, it happened same thing. So frustrating and wasting time. Makro woodmead need to wake up