Woohoo - I submitted all of my apps yesterday!
Just as an FYI for those who'll be submitting soon: after I entered my credit card information, and hit the 'enter'/'submit' button I received an error message, and when I went back to the main page, all the buttons to submit the application were gone, and it said "incomplete" for all of my 15 designations (it had said "complete" earlier). I called customer support who told me that the system had "bugged out" (whatever that means), and that therefore I won't receive a confirmation email. However, when you go to 'Payments' on the main page, it should say "received" under "status". And today it did change to "complete" for the 15 designations, and my credit card was charged.
Now, I can sit back and relax for the next four weeks....uh, I mean work on my dissertation
😉.