In order to access the website you are auditing, the new gmail address has to be the PRIMARY account you are logged into. On web and iOS, open a new incognito/private window and log in to gmail with the new account. On Android, the best way is to use Firefox (incognito Chrome on Android prohibits screenshots).
Proceed to the website https://goo.gl/qLL75v (do not order directly from the Restaurant or Food Ordering Service). If you receive a 404 error, then it means you are not logged in correctly or are not yet whitelisted. If you need help, email us at firstname.lastname@example.org.
If you haven't yet been whitelisted, go here to provide the email address to be whitelisted, and be sure to read the instructions carefully: http://bit.ly/2C6moT1