As others have said, Alamy is an "all or nothing" site. I had one batch rejected early on, and discovered that. I had included one "not my best" image in a set. That happened to be the one they checked, and it all went in the trash.
I removed that one from the set, and a couple others that I realized were in the same camp, then resubmitted. The batch was then approved (after I removed 3 or 4 out of the set of 100).
I now submit 50 to 100 at a time. I have had 100% acceptance since that early batch, and now have close to 3000 images with them.