Thank for the quick replies. It's very helpful.

Now I have two question:

1) If I'm currently Platinum/Sky Priority as of today (July 5), will I hang on to that status until Feb '13? Is there a status page on delta.com where I might confirm when my current status expires?

2) If my Delta.com account status says I've earned 30,093 as of today, by when must I earn 45K more to hit Platinum (e.g., extending my status to Feb '14)?

Thanks again.