The admins settings page uses the 'wp-admin/options-general.php?page=wp-umbrella-settings' URL even if White Label is chosen, and there is also links to https://support.wp-umbrella.com/... on that page. Those links should in White Label mode better just display some basic info in a pop-up/hover, and the URL to the settings page should also be modified. The Astra Pro theme is able to change URL, so it should be doable - though they have other White Label issues. ;)