Sheesh I missed that as well.
I have to say there is an awful lot in EA I did not spot, which is refreshing and annoying at the same time. I appreciate I deliberately did not look in every nook and cranny because I didn't want EA burnout and will wait for new content before trying a different approach. THat said things like who you can trade with should be a little more obvious, at least in my view, maybe I'm just blind!! lol.