“wpcfe_before_label_content” action hook allow to add additional information before the label content.
Copy and paste the following sample code to the theme funcstions.php file.
add_action('wpcfe_before_label_content', function( $shipment_id ){
?>
<div class="col-md-12 my-3 p-0">
<strong>Desclaimer:</strong>
There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, by injected humour.
</div>
<?php
});