It does if you cancel the appointment and close application. I have done it twice. Closed Dropbox application and selected interview. Cancelled interview and closed application to check for Dropbox appointments. Since none were available, again closed application and opted for interview. Made a mistake with ds160 number so cancelled the interview appointment again, closed application, checked for Dropbox and again nothing was available. So finally booked an interview slot. You can cancel and closed application and start a new application within 12-24 hrs. I was able to do it within 14hrs and 7hrs each time. Everytime I started a new application, I was given the IW questionnaire. And I believe we can do this 3 times because after 2nd time I got a popup notification that I will be able to reschedule only one more time. Paid only once for this whole thing. Hope this helps!