Marlboro review: overcharge

this afternoon I went to buy cigarettes that was advertised for 4.74 a pack when you buy 2 packs and when I pay I ask why they are charging me 5.74 for each pack the lady told me that the prices has gone up then I ask for the manager Alex Gomez and he look the sign they had on the shelve and he say that's old and he pull if off and trow it on the floor and told me the forgot to remove it, Its not the 2.00 dollars that I was overcharge its the action and the way this was handle, they just loose a customer.