protected function _sendRequest()
	{
		// clear the old response
		$this->_lastRequestsResponse = null;
		$httpMethod = strtolower($this->_config->getHttpMethod());
		if (!method_exists($this, $httpMethod)) {
			throw Mage::exception(
				'Radial_RiskService_Sdk_Exception_Unsupported_Http_Action',
				sprintf('HTTP action %s not supported.', strtoupper($httpMethod))
			);
		}

		return $this->$httpMethod();
	}