Went to purchase some printer inks. Sign above inks stated 'Buy 1 get next at half price' on ALL Canon multi pack inks. Given they are £39.99 each I decided to get two. At checkout they tried to charge me FULL price, it was only when I highlighted the offer did they re-scan the items and charge me the correct price. Employee stated that their system doesn't have the sale info in so they rely on the customer highlighting it. When I ask to see the Mangers as this is sharp practice all I got was a smirk and my receipt. BUYER BEWARE THEYE WILL CON YOU IF THEY CAN!!!!!!!