To edit your account information, click My Account on the navigation bar at the top of any page of myLTSA Explorer. On the My Account page, click on Update My Account Information and update any of editable fields on that page. This will permanently change the information associated with your account. 

For detailed instructions, see Manage Account.

If you only want to change your account information for a single order, on the Enter Payment Information page you can edit the billing information and email address used for delivery.

You cannot change your username. This is permanently assigned to your myLTSA Explorer account.