AMERICAN EXPRESS Accepted Fake Paperwork and Claims from "Merchant" I had no dealings with Internet

American Express accepted fake paperwork and false statements from a merchant I have never done business with and stuck me with $20,000 in charges. Unbelievable. The "merchant" told American Express they'd give me a "credit!" Unbelievable. Why would I want a fake "credit" with a "merchant" who I have never done business with and a dishonest one at that? Not even in or near my city, by the way. Again, unbelievable. I can't believe people can get away with stuff like this. Oh, and AmEx sued me for it, even after my attorney requested "time." Thank you American Express.