This just happened to me. I was hoping to sell lockbox items to save up for a new ship, but now everything is "bound-to-account". Cryptic should offer to unbind all the items for people who mistakenly bought Zen from them since this happened.
In-game Account @Handle: @itspyros Steam Users: Yes When You Received This Notification: 11/29/2014 Ticket #: It flashed by so fast I couldn't write it down and it's not appearing in the list.