It seems that the bank bug is alive and well. I was switching characters at about 11:45 this evening. When I logged in on my Breton I received duplicates of Imgakin, the Explorer's Pack, Exclusive Digital Content, and Exclusive Digital Content--Nibenay Mudcrab in the mail. When I checked my bank, it had shrunk from 100 slots to the starter allotment, and the only item in it was my original Imgakin.
Really a fun killer after an evening of farming herbs and runes. And just getting my stuff back won't really help unless they can assure me that they've solved the underlying problem. Pretty bummed ...