Wife applied for Chase Ink Preferred on Sat 9/16 from my referral link. Called everyday and got the "reviewing -- will take 7-10 business days" consistently. Today (Thursday 9/21) got approval email. Called and asked for expedite. Don't know why it took so long. My wife is long-term chase customer in very good standing with a couple credit cards, checking account, and a couple of saving accounts. But I share to let others know what sort of turn around time to expect. I was about to call when the approval arrived.

100k points plus 40k referral is a great deal for us especially as a large part of the spend will be in the 4x travel category.