Once an image is uploaded you need to place it in the review queue. Many images can be uploaded but depending on your rejection rating, as few as 20 can be in the review queue at any one time. If, for some reason you decide to delete an uploaded image before placing it in the review queue, BigStock counts this deletion as a "rejection", thereby working against your rejection ration, which limits the number of images you can place in the review queue; which needless to say, limits severely your future sales ops. I mistakingly deleted a bunch of images, thinking I was doing them a favour, only to get whacked with a less than 50% rejection rate. This of course not being my real rejection rate.