Previous cards had the PG manufacturer's mark and the casino's web address on the back was in upper and lower case letters (AtlantisCasino.com).

The latest cards have the same PG mark but the web address is now all lower case letters (atlantiscasino.com). So far only the base green EZComp plus Preferred, Gold Elite and Royal Diamond levels have been reported with the new web address text.

The current Platinum Premier card still has the upper and lower case web address but the reverse is now a grey instead of green. It doesn't look like they changed this card to the all lower case web address yet.

Here's samples of the old and new reverse that shows the difference in the web addresses.

And here's the two variations of the Platinum Premier card that I mentioned