#18 - Sept. 27, 2012, 5:35 p.m.
If you're still not receiving your portraits or banner/sigils, try logging into account management and changing your password. This can sometimes force a 'refresh' of your account info, which may resolve them not appearing. Once that's done feel free to change your password back to whatever you like.
Keep in mind you do need to actually log in to the game world with a Diablo III character to receive the banners and sigils.
I'd appreciate you letting us know if that worked for you so we can help inform others that it seems to be a solution.