Unsatisfactory service

Today i went to buy some goods at shoprite in TONKMETER. Amongst my items there was a steering cover that was priced on the shelf as R59.99 but on the till it did not scan. Another lady came back and said it is R69.99 i showed them the code that was on the shelf another lady with the name tag ONGEZIWE gave me a refund and i signed and i went back to buy it again thinking that they have sorted the problem only to find that it was still not scanning again i told that lady who was a cashier (XOLELWA) that the item is R59.99 i told her that i can go to fetch the code, she did not respond she just gave me a cold shoulder with attitude and the same lady with no name tag came and told the cashier that the item is R69.99 offwhich i don't even know where are they getting this price because on the shelf there's a price of R59.99 and she gave me a straight look and ask me if i want it..i said yes i want it and i paid and left. But i was just not happy with the service....items should be charged using the prices on the shelves and if they may a mistake that should not be a customer's problem.