First of all, there appears to be two variations of the Resorts Destination Casino Club cards with both Bally's and Resorts Tunica logos on the front and the PG manufacturer mark on the reverse with two casinos listed on the bottom of the reverse plus the second line of text in the reverse paragraph starting with "and regulations...". There is a metallic red card and a plain red card with the exact same printings. The cards are very distinct when you have them together.

I also found a black Ultra level with PG on the back that is the issue before the two red Classic card mentioned above.

There are also two very similar cards that have www.plicards.com in the lower right corner on the back plus C-96252B on the red Classic card and C-96252D on the grey Elite card. These were previously not listed and no other levels have been discovered yet with the C-96252x printing but it would seem they were probably made. If anyone comes across any other levels please let me know and/or send scans. These appear to have been used before the two casinos went back to separate slot cards for each property.

Here's scans of the two newly found cards with plicards on the back....