/**
  * execute if transaction was loss
  * 
  * @param SofortLib_TransactionData $transData
  * @param Mage_Sales_Model_Order $order
  * @return void
  */
 private function _transactionLoss($transData, $order)
 {
     $payment = $order->getPayment();
     if ($transData->isLastschrift()) {
         $payment->setParentTransactionId($transData->getTransaction())->setShouldCloseParentTransaction(true)->setIsTransactionClosed(0)->registerRefundNotification($transData->getAmount());
         $order->addStatusHistoryComment(Mage::helper('pnsofortueberweisung')->__('Customer returned payment'))->setIsVisibleOnFront(true);
         $order->save();
     } elseif ($transData->isSofortrechnung()) {
         // be sure that order can cancel
         $order->setState('sofort');
         $order->cancel();
         $order->addStatusHistoryComment(Mage::helper('pnsofortueberweisung')->__('Successfully canceled invoice: %s', $transData->getTransaction()))->setIsVisibleOnFront(true);
     } elseif ($transData->isSofortueberweisung()) {
         $lossStatus = Mage::getStoreConfig('payment/sofort/pnsofort_order_status_loss');
         $order->setState('sofort');
         if ($newStatus == 'unchanged') {
             $order->addStatusHistoryComment($transData->getStatus() . " " . $transData->getStatusReason());
         } else {
             $order->addStatusHistoryComment($transData->getStatus() . " " . $transData->getStatusReason(), $lossStatus);
         }
     } else {
         // be sure that order can cancel
         $order->setState('sofort');
         $order->cancel();
         $order->addStatusHistoryComment(Mage::helper('pnsofortueberweisung')->__('Customer canceled payment'))->setIsVisibleOnFront(true);
     }
     $order->save();
 }