Gatekeeper sends out our feeds to all booksellers, which means third party sellers can offer the book through retail channels as well. Rest assured if they are ever to sell a copy, their order would originate through us just like any other seller, which means you will still earn your normal proceeds for the sale. If they make a sale, the order is drop shipped on our end for them.
Please note that some third party sellers will list books as used or new at exorbitant prices on Amazon. To the best of our knowledge, this is all done by algorithms and they have never sold any of our books this way. Unless you are having another company print copies of your book, the birthplace of all copies is Gatekeeper Press and you are compensated on every retailer sale (unless it is a third party selling a legitimately used copy).