Incorrect pricing

Im so disappointed about the service i received from Tops at Melmoth. I tried to purchase Savannah and Extreme and was unable to buy since the prices that were on display differed from the price that the cashier advised, and they were unable to change the price even though it was wrong and all they could say was ITS EITHER YOU TAKE IT OR LEAVE IT AS WE ARE UNABLE TO CHANGE THE PRICE EVEN THE MANAGER HAS FAILED. Question is how many customers did they sell to with the incorrect price.Please look into this matter as i had to leave without buying what i had come to purchase. Very Disappointed and disgusted customer