When we publish your book, we broadcast your metadata to the entire book universe of nearly 40,000 potential booksellers (including retailer's such as Walmart, Target, etc.). Although the files are made available to them, it is up to their discretion whether they decide to list a book on their platform, and Gatekeeper Press has no control over this decision.
We have direct relationships with all of the largest eBook retail platforms and we have a direct relationship with Amazon for paperback books, but all other sales go through our distributor, Ingram Content Group. If some small retailer in the world, or a third party seller on eBay places an order for your book, they order the book through Ingram, which prints the book directly and reports back the sale to us. All sales are reported back to us from all of our retail and wholesale partners. You can rest assured that any book of yours that is sold, you will receive royalties.