You can manage the user profile information for your order by logging in here, using the email address that you used to place your order.
Select the profile icon in the top right corner of the page.
Then select "Account Information", and then click the edit button next to your name.
Update your email address and then click save!
*Note that updating your account address in portal will NOT update your shipping address for an active order. If you need to change your shipping address for an active order please reach out to support here.