sadly the nature of the beast with these ‘flash sale’ sites is that you wait a while for the bargains. they hold no stock, only buy in what is sold after the sale has finished. It’s then on the supplier to ship out quickly and hope there are no problems. any delays just add up and add up,as there is no stock there that is why you cant exchange for a different size/colour. you pays yer money, you takes yer chances. it’s quite a genius business model from their point of view – not so much from the consumer side though