If everything else is streaming properly, contact firstname.lastname@example.org and ask them to reset your account. Which codes have you received from Samsung? Usually the widget providers provide their own codes for their system.
The activation code I receive when I go to the Pandora menu on my Samsung blu ray BDP-3600 is not activating the account. Network is configured correctly and is working. I have tried several activation codes provided by Samsung to no avail. Is this a Samsung issue or Pandora?