Change verification e-mail address

Hi there,

Hopefully someone can help me with this. When logging in into the ORBI app on my iphone I noticed I can't get in because my verification e-mail address has changed (can't be recalled) and my iphone has changed (not the number but the device). Now i have to change my verification address as well as my trusted device for the app.

How can I change the verification e-mail address for getiing into my ORBI app? I can't change it in my Netgear account.