protected function call($command, $params, $data = [], $options = [])
    {
        $uri = $this->getRequestURI($command);
        $body = $this->getRequestBody($params, $data, $options);
        $xml = $this->client->post($uri, $body); // Make the request to web service
        return $this->factory->createResponse($xml, $this->module, $command);
    }