I assume you're in Canada? Contact our support team. They can help.
Well, I was about to leave, so that post was kinda bad, so lemme rephrase.
The patch before the recent made my Classic pack and Dead Money disappear, all of it, all the items. After the new patch came 1.06 I believe, I waited a bit then bought and downloaded Honest Hearts and Old World Blues, they arn't showing up either.