Point of sale notices have been displayed in all shops selling the product. Customers have been advised to return any jars to the store where they bought it for a full refund, or to phone the Sushi Daily helpline.which is 0203 006 7896. Sainsbury's notice says: "As a precautionary measure we are asking customers who have purchased this product not to consume it but return it to their nearest Sainsbury's store, where they will receive a full refund." The Sainsbury's notice refers to "small pieces of glass".