I didn’t tell them I got the status through Founders Card, but I specifically asked them in person at the rewards desk in LV, to double-check my account, and they said it expires on 1/31/22. My Founders Card membership expires much sooner. I would find it a tad difficult to believe that (especially seeing virtually NO play on my Diamond status account), they would 1) not obviously know I got that status through FC, but 2) more importantly....NOT know/tell me, (if indeed it’s the case), “your Diamond status ends when your FC membership does.” And if that is the case, it doesn’t bode well for them that my card and on-line account both list a 1/31/22 expiration date.