I recently purchased 2 Lenovo 65w USB-C chargers. One came shrink-wrapped in a legitimate Lenovo box. The other was in a plain cardboard box with a prominent "Made in China" as its only branding. These were sold from the very same product page.
When I told Amazon, I had to go to UPS to return the fake product to them to receive my refund, so not only do I have to purchase it again (obviously not from Amazon), I have to go to a store to send it back to them -- defeating the whole purpose of ordering it online to begin with.
I've received fake books and other things before as well. Each time I reported it to Amazon, and each time nothing happens.
This is completely unacceptable, and I just now cancelled my Prime membership, which I had since pretty much day one.