I was having the same/similar issue. I'd click on the link in the emails IDNotify sent, they would ask me to login, I didn't have the login. I scoured my email for an initial email with a username and instructions on how to set up a password and I've never received one. Finally I:
1) logged into my TurboTax account,
2) Scrolled down to the * MAX section ("You've unlocked exclusive benefits for total peace of mind"),
3) Clicked the "See all your MAX benefits" dropdown,
4) Under the "Need help restoring your identity?" section I clicked on "Login to your Experian IDnotify account" and it took me to my IDNotify dashboard.
TurboTax needs to make it much clearer how to access your IDNotify dashboard. IDNotify nor Experian ever sent me an email with login instructions. The update emails just came in and their links take me to a login page I have no credentials for.
