Hey so, I hate to be the bearer of bad news and you're going to say "I know what you're about to say" and you're absolutely right. You might have missed the patch notes last week but they took away the ability to trade these but you can sell them instead now. I'm not sure why it says "this item can be exchanged before the jan 14 maintenance" because it should probably read "this item will be removed on the jan 14 maintenance" if they plan on removing it.

Agreed that this is confusing although always look at events ending in the pre-maintenance patch notes so you don't foget to do anything. Sorry bud, we've all done this, it's a rite of passage at this point. :'(