Forget it. Just got this email from Ticketmaster confirming I'm still registered:
See details and dates below to help you get ready. Important Dates The Citi Presale will begin tomorrow,Thursday, November 30, 2017 at 9am venue local time. You’ll receive a text tomorrow morning 2-4 hours before the Citi Presale begins on Thursday, November 30 prior to the Citi Presale at 9AM venue local time. Your text will include your purchase window details, your unique access code and link to purchase your tickets.