Измените флажок доставки на радионотке
if ( ! function_exists( 'toggle_shipping_address' ) ){
function toggle_shipping_address(){
global $post;
if($post->post_name === 'checkout'){
?>
<script type="text/javascript">
jQuery(document).ready(function($){
$('.radio-toggle .input-radio').change(function(){
var curval = ($(this).val() === '0') ? true : false;
$('#ship-to-different-address-checkbox').prop('checked', curval);
$('#ship-to-different-address-checkbox').trigger('click');
});
});
</script>
<?php
}
}
}
add_action( 'wp_footer', 'toggle_shipping_address' );
Disgusted Dingo