In the survey carried out in January, Which? asked more than 10,356 shoppers how satisfied they were with a store and how likely they were to recommend it to a friend.
The customers complained about the books and stationery retailer’s customer service and labelled it a “horrid shop”, Which? said on its website.
However, Which? readers named handmade cosmetics retailer Lush, health and beauty retailer Savers and Smyths Toys as the highest ranking stores.
According to Which?, customers enjoy sensory experiences and being helped by friendly staff.