Unmatched Billing of items

I was at sheet street Mtubatuba yesterday 20th November, the store assistant were very welcoming and assisted me in what I was looking for. The only problem I encountered is the wrong price written on the item that I took, when I get to the till it gave me the other price. That is not good, I felt so ****** because I wouldn't have chose that item if I new that price from the start. Unfortunately I was running out of time I wasn't able to change.