When you are first onboarded you should receive information about your nesateam e-mail address. Everyone is issued one. For example, my nesateam e-mail address is email@example.com. Once your account is created you can access your e-mail by going to the following videos:
Android Setup Video
iOS Setup Video
If you do not remember your password and need it to be reset, please submit a ticket or e-mail firstname.lastname@example.org.