when people say oh this is because the other side says...that is a he said, she said scenario. you would have to ask the first party this: yeah? would you please produce the document to back up what you are telling me? which american banks has what regulations that you are working with so i can go ask the americans" so if you assume any thing my friend, you are to blame yourslef.
another things is americans do not have jurisdiction over any chnese banks and thank god they do not.