With the latest updates my account is now reflecting Lifetime Platinum Premier Elite on both the website and in the app. (Previously these were inconsistently showing LTPP in some places and just Platinum in others.) There are still a few discrepancies. For instance, the app says that I can renew Lifetime Platinum Premier Elite at 75 nights, and the details on the nights/years elite on the website says "25 nights needed to renew Platinum Elite". (I am currently at 50 nights this year.) It's moving in the right direction at least!