I’m confused so you bought a part from someone then you kept it and they still gave you your money back. Now you are complaining about it and saying that you are going to sell the parts off of the part and make money off of your now free part. Sounds like you made out to me. Most online sellers do not return postage and they make you pay postage to return the item. When I think something is not the right fit or isn’t to my standards I send it back. This person sounds pretty nice giving you your money back before returning the part. Sounds like you are the scammer by keeping the part and have the nerve to complain you got it for free. Sounds fishy. Do you do this often? Buy something from someone who is trying to help, complain so you get your money back, then sell the parts? Because last time I checked Crossfire parts are hard to come by and are not always as perfect as we would like.