Sainsbury's is rewarding shoppers for shopping in one of its aisles and few customers realise Sainsburyâs âThe Great Big Fruit and Veg Challengeâ has returned to the Nectar app. 08:46, 3 JUN 2021 Updated Supermarket retailer of the year named - and it's not Aldi, Tesco, Lidl or Sainsbury's (Image: PA) Email updates on the latest on shopping, restaurant news and moreInvalid EmailSomething went wrong, please try again later. Subscribe When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice. Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice