Time and time again recently we have found the price shown on the shelf edge does not match the price charged at checkout. Eventually I got fed up and took my product back with my receipt (a few days after purchase as we live some distance fro the store). I was astonished at Customer services, who argued the price I had seen displayed under the product had never been there! The reason I had bought 4 of the items was purely as they were on special offer. Basically, I was told I was lying & they were not prepared to do anything about it.
MAKE SURE THE PRICE YOU SEE IS WHAT YOU PAY !!!!