You can return items you are not happy with to Whistles provided you are within 28 days of the purchase date.You can return web orders to a standalone store (not concessions), and, in a rather unprecedented move, you can also return store items directly to a Whistles warehouse, using the Collect+ service on the returns page of the Whistles website. Make sure to use the store name or the receipt ID as your order reference and include your receipt in the return - but, don’t forget to retain a picture or printout of your receipt just in case.