Clicks - never dull, always different (ie higher for the customer) prices actually to pay at till...

Today was the 3rd time in a row I was shopping at Clicks at Ferndale on Republic when i noted that the promo price on the shelf didn't aligned with the one charged at till. And it was ALWAYS to MY ( ie the customer's) detrimentum! Doe they think we customers are just too stupid to remember the prices on the shelves until we re at tills? Unfortunately the cashier's have t face the music, though it's not their fault.. Very disappointed customer, Jutta