Found a number of unlisted cards from the Diamond Jacks casino in Bossier, LA...

Turns out there are two variations of the 2010 dated cards, one set has three lines of text with the copyright date under the reveres paragraph. The second set has two lines of text with the copyright date centered under the reverse logo and paragraph. There are the grey base level Rewards Club and the mustard Gold Club cards in both variations.

Plus a new found grey Rewards Club card dated 2011 with P607240-1 on the back in the left corner with PLI in the right corner.

And a grey Rewards Club card dated 2012 with P660840 and PLI on the back.

Scans of all the new found cards have been added on the ChipGuide.