I took NCLEX Tuesday, got home and tried the trick, website down. I kept trying throughout the night and was able to get through twice that night and got a pop up that said, "our records indicate you have recently scheduled this exam. Please contact your member board for further assistance. Another exam can not be scheduled at this time." (I'm on my phone, hope that doesn't change anything).
I'm a little worried that because of the site being down it'll effect how the trick works. I've gotten through 5 times since Tuesday and received the same pop up each time. On my phone, please excuse any typos.