I won at item at an auction house that said it came with JSA Authentication
I got a letter in the mail and it came with a photocopy of a document that said I had to send the item to jsa to get authenticated but it would be at a discount.
JSA told me it would cost $50 and I had to ship them the item

How can they justify that as "JSA authentication"?

I'm looking to return the item and get a refund since the main reason I purchased it was because it already came with the letter. They told me they won't issue a refund.

Has anyone else experienced this? What can I do?