public function loadFeedback()
    {
        $serviceName = NotificationServices::APPLE_PUSH_NOTIFICATIONS_SERVICE;

        try {
            $this->logger->info(sprintf("Querying the feedback service '%s'", $serviceName));

            $connection = $this->initFeedbackConnection($serviceName);

            $this
                ->responseHandler
                ->addResponse(
                    $connection->sendRequest()
                );

        } catch (RuntimeException $e) {
            $this->logger->error(
                sprintf("Runtime error while acquiring feedback: %s", $e->getMessage())
            );

        } catch (\Exception $e) {
            $this->logger->error(
                sprintf("Error occurs while acquiring feedback: %s", $e->getMessage())
            );
        }

        return $this;
    }