IME, Amex sometimes approves shows people the 'pending' confirmation-page, and approves them within a few hours.
Yep, you get a pending email and some time later, you get approved. A couple hours, a couple days. Have had that happen more often with biz cards than personal.
And calling the Chase automated line with multiple apps is just annoying because it just says, "Your first application was received on x/x/x and is...., your next application was received on x/x/x and is..." Yeah, I already knew my three applications were received on the same day and are pending....
And at that point, you're going to have to talk to recon anyways...