Your email address is your username to log into the VAL. If your email address changes, you can update it in the VAL to keep access to your existing sightings and photos. To update your email address:
From the VAL Data Explorer homepage, click the "More" button in the top right and login:
Once you are logged in, click the "More" button again and select "My profile" from the dropdown. From here, select the "Update your profile" link under your name:
You will be taken to this page (see below). Change your email address as required and click the Update account button below. Log out and Log in again using the new email address to confirm the change.