Pricing change

I went to Woolworths Ghandhi Square to do my groceries. I was disappointed by the service that I received there. The pricing of most items were incorrect. I saw Lifestyle Woolworths drinks for a price of R41.99, when I went to pay it was R54.99. The till lady went to double check the price and suddenly the price that I saw was changed. The manager was informed and she said that was never the price and there is nothing she can do as now it is my word against the 'new price' that is now there. This was very unprofessional and my side as a customer was not heard.