Warning re. Sport shoes

Warning! Sports shoe attribute labels on the shelves are all wrong in Cavendish and Blue Route stores and the Cavendish manager admits that customers cannot believe the Running/Walking/Gym, low/mid distances, etc. info that is listed beneath each shoe. And store staff have no idea what shoe is designed for what. I went to buy new running shoes because my current Maxed (Mr Price Sport brand) running shoes probably need replacing because I've been having pain in my shins and am worried about injury. It turns out that the running shoes I purchased by reading the label saying mid distance running shoe was actually a gym shoe with no running support! Now I'm really worried about having started an injury by running in the wrong shoes! I am livid. I told the manager to turn all the attribute labels around until his lazy staff can correct them. Am going to write to their head office.