In order to download edited photos in full resolution go to the Edits tab of your job and click "Add to Cart" on the photos that you like. The photos will be rated as "Accepted" and will appear in your Cart.
When you are ready to checkout just Download accepted photos from the Cart tab and full resolution images without watermark will be downloaded.
Credits will be automatically transferred to a retoucher's account. Just in case there is not enough credits on your balance to download all photos the system will offer you to purchase additional credits.