I've been selling books for over 5 years; new and used. Low ranking and high ranked. I have over 100 titles and today for the first time I haven't made not one sale. Is there something going on today that I didn't know about? Am I being throttled?

I have been selling books on Amazon for 18 years, and this has NEVER happened before. I haven't sold a book in over two weeks. I checked and am not on vacation and my performance score is good. What happened?

Hi. I hope someone can help me.

I had an established store for a few years with Amazon. Very good customer reviews. The store has been inactive for years and I just restarted it and got approved in the books category again.

Yesterday I went to list books I plan to ship to FBA and 5 of 6 books had restrictions on them. All had good sales ranks. It said I would have to show receipts etc to get approved.

Does that mean I can’t really sell used books anymore? I sourced these from thrift stores. HELP.