It's a reason why buying anything on Amazon that could be counterfeited is a minefield, especially (given commingling of inventory) if the seller is Amazon or anyone using Amazon fulfillment, because then you can't even rely on experience with the seller, since the item you get may not actually be from the identified seller.
This scares me, a lot. After watching enough videos online I've had to start using the Apple Store, paying shipping, to avoid any potential fire hazards. Most consumers probably never know. :( It's crazy that they sell the fakes on the official Apple product pages.