public function doTrackEcommerceOrder(
        $orderId,
        $grandTotal,
        $subTotal = 0.0,
        $tax = 0.0,
        $shipping = 0.0,
        $discount = 0.0
    )
    {
        $url = $this->getUrlTrackEcommerceOrder($orderId, $grandTotal, $subTotal, $tax, $shipping, $discount);

        return $this->sendRequest($url);
    }