Having just had my CD key changed (thanks again!), it seems all the cash in my wallet, and all the items in my various bank chests have vanished.
If this is a consequence of the key being altered, then I guess it can't be helped, but if there is some way of retrieving even a part of it, I'd be very grateful. I can't recall what was in any of the bank chests, but there was rather a lot, so I can't recall any of the details...apologies.
If I am not mistaken bank chests and wallet are tied to your CD Key and not your account name or perhaps a combination of the two and I believe having your CD Key cleared/reset means you lose your bank chests and wallet.
If you can access your characters I'm going to guess you managed to add your new CD key to the list allowed for your accounts? If you still have access to the old key I'd say log in with it and transfer all the gear in chests to characters temporarily.