Every time I try to upload my ebook into E bookstore using the MOBI format for Kindle, I get the following error message:
"The file type that you've uploaded is not a mobile book format."
Yet this same MOBI file opens easily on my Kindle.
I get the same message when I try to upload an EPUB version.
When I try to upload a PDF version of the book, it is occasionally successful, but I am unable to see the book on the page. Can you help?