If you've been called for an interview at SWA without the type then wait and see if you get the "thumbs-up". I didn't have the type when I went for the interview and things worked out; I went and got the type immediatly after I found out the good news. Just remember, when they ask about why you don't have the type to be totally truthful. If you get the call you have the same chance of being hired as the person sitting next to you with the type. Be humble and do some interview prep! Good luck!!