Giftware - WooCommerce Gift Cards

Enlace del plugin: https://makewebbetter.com/product/giftware-woocommerce-gift-cards/

En el archivo \wp-content\plugins\woocommerce-ultimate-gift-card\function\woocommerce-ultimate-gift-card-function.php añade el siguiente código:

if (class_exists('WOOCS')) {
    global $WOOCS;
    $currency = $WOOCS->current_currency;
    $currencies = $WOOCS->get_currencies();
    $rate = $currencies[$currency]['rate'];
    if (isset($_POST['mwb_wgm_price']) AND floatval($_POST['mwb_wgm_price']) != 0.0) {
        $_POST['mwb_wgm_price'] = floatval($_POST['mwb_wgm_price']) / $rate;
    }
}

$rate = 1;
if (class_exists('WOOCS')) {
    global $WOOCS;
    //$order_id=$item->get_order_id();
    //$order_currency = get_post_meta($order_id, ‘_order_currency’, true);
    //woocs
    $order_currency = $WOOCS->current_currency;
    $currencies = $WOOCS->get_currencies();
    $rate = $currencies[$order_currency]['rate'];
}

$total_discount = $mwb_ugc_discount/$rate;

$total_discount = $mwb_ugc_discount/$rate;

if (class_exists('WOOCS')) {
    global $WOOCS;
    $cur_cur = $WOOCS->current_currency;
    $WOOCS->reset_currency();
    $args['amount'] = wc_price($mwb_wgm_common_arr['couponamont']);
    $WOOCS->set_currency($cur_cur);
}

//woocs
$currency_symbol = get_woocommerce_currency_symbol();
if (class_exists('WOOCS')) {
    global $WOOCS;
    $currency = $WOOCS->default_currency;
    $currencies = $WOOCS->get_currencies();
    $currency_symbol = $currencies[$currency]['symbol'];
}
$message = str_replace('COUPONAMOUNT', $currency_symbol . $remaining_amount, $message);

Referencia de shortcodes, funciones, acciones y filtros de FOX WooCommerce Currency Switcher