You can change the email address of your HANDS HQ account at any point.
Please note that if you change your email address it will change the email address that you use to login and where you will receive all future emails from HANDS HQ.
Login to your HANDS HQ account and click Settings
In the email section delete previous email and enter the new email address
Scroll down and click Save
You have now changed your email address.
Please remember that when you login the next time you will need to use the new email address.