I assume that who you mean by "them" is eBay. That's
exactly what I sent eBay, along with the photos of the
product. This wasn't just a case of a cordial or friendly
misunderstanding: the seller blatently lied in his listing.
eBay refused to look a my evidence, which I mailed on
a floppy disk.

eBay expects you to go through their bureaucratic process. I did, and got back a
fair chunk of the money I spent for a defective product.