To change the email on your Rebtel account from the App, follow the following steps:
To change the email on your Rebtel account from the website, follow the following steps:
Log in to my Rebtel (if you're on the Rebtel homepage, click on your profile picture)
Click on "My profile"
Click on the Email field and enter the new email
Once the change is performed, click on "Save Changes" and you are done!