Hello, I have my book. It is ready to publish. I am working on my marketing plan. I have purchased my ISBNs. I go to get it registered on the Library of Congress. And I get to the part where it asks me to list the ISBNs for each format. However it tells me that my ISBN number format is incorrect. I have copied them directly from Bowker. But it will not accept them. I tried it repeatedly with and without dashes. It specified 13 digits. I counted the digits and it was correct. I navigated away from the page to look for a help of some sort. There is no help or tech support. And I lost all of my data. Anyone have any idea how to fill out this form correctly?