public function getResultMessage()
    {
        $parts = [];

        $node = $this->getFirst('//epp:epp/epp:response/epp:result/epp:msg');
        $parts[] = $node->nodeValue;

        $nodes = $this->get('//epp:epp/epp:response/epp:result/epp:extValue/epp:value/*');
        foreach ($nodes as $node) {
            $parts[] = $this->saveXML($node);
        }

        $nodes = $this->get('//epp:epp/epp:response/epp:result/epp:extValue/epp:reason');
        foreach ($nodes as $node) {
            $parts[] = $node->nodeValue;
        }

        return implode("\n", $parts);
    }