Not being able to exchange sizes on the identical item is VERY unusual and inconvenient. The shopping experience would be much improved if you could exchange for change of size. We have now waited weeks and paid $25.50 more for the identical item in one size bigger. It would also assist if you could note that your sizes run small. We ordered size 8 which is my regular size and only only realised after receiving the item and it being too small and looking at the reviews that your sizes run small.