@Seller_lmwzklfLOK2Ob - Your reply to the OP is only the tip of the iceberg.
There are numerous threads on the forum about the whole issue, and none of them are ever adressed satisfactorily. Used book sellers are being asked to apply for 'approval' to list their books, AND then provide an invoice for 10 copies, but most of us only ever have one of each book (see my post 3 days ago).
Seller Support do not understand the used book market, always talking about 'brands' when they are publishers, and I would urge you to check out some of the threads on the seller forum regarding the problem.
Many of us have opened cases with Seller Support, and I have also sent an email to the MD, BUT the issue of the 'first sale doctrine' is NEVER addressed properly. The doctrine allows the sale of used books and media items 'allows the owner of a copyrighted work (e.g., books, DVDs) to sell, it without the copyright holder’s permission. Once the initial sale occurs, the copyright owner’s control over that specific item ends. '