We've created this Forum Thread with some workarounds and advice to assist you in publishing you ebook.
How will I know?...
Published a new ebook the other day. Had to revise it for some "issue" and resubmit it. Never having published an ebook before will I get a confirmation email that the "issue" has been properly fixed, the ebook was accepted and put into distribution? Or do I have to just bite my nails, wait, and see if it starts showing up in ISBN searches?