Bad customer Service by cashier

Hi. I am very disappointed at the service I received at Woolworths Morning glen, Sandton. The service I received from Bonakele Mabuza was disgusting and very disrespectful. This is actually the second time she gives me this attitude, she is ill mannered and has no product knowledge what so ever! Woolworths has a wine special at the moment and for some reason when they scan the wines it pulls up the normal prize. I asked her why because there's the booklet clearly stating that its R100 for three wines, she then said "its not her business whats on the paper, her business is what the till shows". The first time around we had to call the manager to come sort it out and he did, but yesterday seemingly she forgot. Woolworths has the best customer service and that's why I've been loyal to the brand since childhood. Please fix this because I will not go elsewhere because of bad service and let me know how the matter was resolved.