Anderson Ranch & Gun

I bought a Colt single action army from Anderson R&G old off Gunbroker. They claimed it is an Artillery model. When I received the revolver and checked against my book by John Kopec, A study of the Colt saa revolver, it is a fake with many obvious issues that Tyler from Anderson failed to provide in photos or the description on Gunbroker. He refuses to refund me the thousands of dollars charged for the fake. I’ve contacted Gunbroker but don’t feel they will help either. I have the gun and can prove it is fake. I may send it directly to John Kopec for a letter then get an attorney. Very upset.