public function addHistory($event)
    {
        /** @var $order Mage_Sales_Model_Order */
        $order = $event->getOrder();
        if ($order && $order->getPayment()) {
            if ($order->getPayment()->getMethod() == Fontis_Australia_Model_Payment_Directdeposit::CODE) {
                $order->addStatusHistoryComment('Order placed with Direct Deposit')->setIsCustomerNotified(false);
            } elseif ($order->getPayment()->getMethod() == Fontis_Australia_Model_Payment_Bpay::CODE) {
                $order->addStatusHistoryComment('Order placed with BPay')->setIsCustomerNotified(false);
            }
        }
    }