Enter your purchase email address for 2017 updates. HIYA!
If it doesn't work for you, try typing your email address in a word document (or something similar) and copy/paste it into the form.
If all else fails, please contact the NINJA Help Desk and be sure to let us know
(1) what updates you still need and (2) approx. when you purchased
(don't forget to slide the bar to the right to submit)