How to make shipping woocommerce for Palestine shops

How to make shipping woo-commerce for Palestine shops
first, you need to sign up for this course and download all plugins

Activate selection custom field

add locations

westbank : الضفة الغربية
jerusalem : القدس
48 : اراضي 48

assign location with checkout js

// jQuery - Ajax script
add_action( 'wp_footer', 'checkout_shipping_packing_script' );
function checkout_shipping_packing_script() {
    // Only checkout page
    if ( is_checkout() && ! is_wc_endpoint_url() ) :

    WC()->session->__unset('chosen_packing');
    ?>
    <script type="text/javascript">
    jQuery( function($){
        $('form.checkout').on('change', 'select#billing_wcccf_id_HsSMAWoE9Ndc2OD', function(){
            var p = $(this).val();
            console.log(p);
            $.ajax({
                type: 'POST',
                url: wc_checkout_params.ajax_url,
                data: {
                    'action': 'woo_get_ajax_data',
                    'packing': p,
                },
                success: function (result) {
                    $('body').trigger('update_checkout');
                    console.log('response: '+result); // just for testing | TO BE REMOVED
                },
                error: function(error){
                    console.log(error); // just for testing | TO BE REMOVED
                }
            });
        });
    });
    </script>
    <?php
    endif;
}

// Php Ajax (Receiving request and saving to WC session)
add_action( 'wp_ajax_woo_get_ajax_data', 'woo_get_ajax_data' );
add_action( 'wp_ajax_nopriv_woo_get_ajax_data', 'woo_get_ajax_data' );
function woo_get_ajax_data() {
    if ( isset($_POST['packing']) ){
        $packing = sanitize_key( $_POST['packing'] );
        WC()->session->set('chosen_packing', $packing );
        echo json_encode( $packing );
    }
    die(); // Alway at the end (to avoid server error 500)
}

// Add a custom dynamic packaging fee
add_action( 'woocommerce_cart_calculate_fees', 'add_packaging_fee', 20, 1 );
function add_packaging_fee( $cart ) {
    if ( is_admin() && ! defined( 'DOING_AJAX' ) )
        return;

    $domain      = "woocommerce";
    $packing_fee = WC()->session->get( 'chosen_packing' ); // Dynamic packing fee

    if ( $packing_fee === 'westbank' ) {
        $label = __("Bag packing fee", $domain);
        $cost  = 20.00;
    } elseif ( $packing_fee === 'jerusalem' ) {
        $label = __("Gift box packing fee", $domain);
        $cost  = 30.00;
	 } elseif ( $packing_fee === '48' ) {
        $label = __("Gift box packing fee", $domain);
        $cost  = 70.00;
    }

    if ( isset($cost) )
        $cart->add_fee( $label, $cost );
}

// Field validation, as this packing field is required
add_action('woocommerce_checkout_process', 'packing_field_checkout_process');
function packing_field_checkout_process() {
    // Check if set, if its not set add an error.
    if ( isset($_POST['chosen_packing']) && empty($_POST['chosen_packing']) )
        wc_add_notice( __( "Please choose a packing option...", "woocommerce" ), 'error' );
}