The most important thing is that the email being changed to is not invited or used in Geniebelt before the change.
If the new email is used in GenieBelt in some way, it will not be possible for you to change it by yourself.
This can then only be done by LetsBuild and this might take time before it is done.
Go to the profile, click on "Change your email."
Enter the new email and your current password.
Click on change.
Wait for a confirmation email, and follow the confirmation.
5. The email has now been changed.