added shipping phone + email, but billing e-mail & phone display wrong

Hello,

We added 2 custom fields to our shipping adress with this functions :

	// display shipping phone in checkout and my account edit shipping address
	add_filter( 'woocommerce_shipping_fields', 'add_shipping_phone_field' );
	function add_shipping_phone_field( $fields ) {
	   $fields['shipping_phone'] = array(
		  'label' => __('N° de téléphone du destinataire'),
		  'required' => true,
		  'class' => array( 'form-row-wide' ),
		  'priority' => 100,
	   );
	   $fields['shipping_mail'] = array(
		  'label' => __('Email du destinataire'),
		  'required' => false,
		  'class' => array( 'form-row-wide' ),
		  'priority' => 100,
	   );   
	   
	   return $fields;
	}

	// Editable field on admin order edit pages inside edit shipping section
	add_filter( 'woocommerce_admin_shipping_fields' , 'add_order_admin_edit_shipping_phone' );
	function add_order_admin_edit_shipping_phone( $fields ) {
		// Include shipping phone as editable field
		$fields['phone'] = array( 'label' => __("Téléphone"), 'show' => '0' );
		$fields['mail'] = array( 'label' => __("Email"), 'show' => '0' );

		return $fields;
	}

	// Adding custom placeholder to woocommerce formatted address only on Backend
	add_filter( 'woocommerce_localisation_address_formats', 'admin_localisation_address_formats', 50, 1 );
	function admin_localisation_address_formats( $address_formats ){
		// Only in backend (Admin)
		if( is_admin() || ! is_wc_endpoint_url() ) {
			foreach( $address_formats as $country_code => $address_format ) {
				$address_formats[$country_code] .= "\n{phone}";
				$address_formats[$country_code] .= "\n{mail}";
			}
		}
		return $address_formats;
	}

	// Custom placeholder replacement to woocommerce formatted address
	add_filter( 'woocommerce_formatted_address_replacements', 'custom_formatted_address_replacements', 10, 2 );
	function custom_formatted_address_replacements( $replacements, $args  ) {
		$replacements['{phone}'] = ! empty($args['phone']) ? $args['phone'] : '';
		$replacements['{mail}'] = ! empty($args['mail']) ? $args['mail'] : '';

		return $replacements;
	}

	// Add the shipping phone value to be displayed on email notifications under shipping address
	add_filter( 'woocommerce_order_formatted_shipping_address', 'add_shipping_phone_to_formatted_shipping_address', 100, 2 );
	function add_shipping_phone_to_formatted_shipping_address( $shipping_address, $order ) {
		global $pagenow, $post_type;

		// Not on admin order edit pages (as it's already displayed).
		if( ! ( $pagenow === 'post.php' && $post_type === 'shop_order' && isset($_GET['action']) && $_GET['action'] === 'edit' ) ) {
			// Include shipping phone on formatted shipping address
			$shipping_address['phone'] = $order->get_meta('_shipping_phone');
			$shipping_address['mail'] = $order->get_meta('_shipping_mail');
		}
		return $shipping_address;
	}

	// Remove double billing phone from email notifications (and admin) under billing address
	add_filter( 'woocommerce_order_formatted_billing_address', 'remove_billing_phone_from_formatted_billing_address', 100, 2 );
	function remove_billing_phone_from_formatted_billing_address( $billing_address, $order ) {
		unset($billing_address['phone']);
		unset($billing_address['mail']);
	  
		return $billing_address;
	}

I don’t know why, but in packing slip, those two detail goes to the good place, perhaps billing phone & billing e-mail are going to the wrong column :

you can see a capture here : https://ibb.co/DpJpvRc

The information in RED should go under biling adress.