Originally Posted by
lichenlt
This has nothing to do with Chase or its withdrawal. It was Hyatt itself that promised the Diamond status for those who applied and were approved. It was Hyatt's offer (in its marketing email and on its website), not Chase's. It doesn't matter if Chase knew about this offer (or mistake). This offer was, nonetheless, Hyatt's, not a partner's, therefore this clause doesn't apply.
I would agree if Hyatt issued its own credit cards, but Hyatt doesn't and their credit cards are administered through Chase. And there is the issue of applying for the credit card through Chase.
Its evident that Hyatt is not bound by its terms and conditions to honor what was wrongfully advertised. Otherwise there is a basis for a class action lawsuit.
This above is the distinct difference between the Fairmont Lifetime Platinum offer which Fairmont had to honor to avoid lawsuits, and which Hyatt is now denying on a legal basis. If Hyatt has no legal grounds to detract, then Hyatt would not risk going to court. The damages would be too costly.