public function GetBanks($validateXml = true, $url = null)
    {
        if ($url == null)
            $url = 'https://routing.eps.or.at/appl/epsSO/data/haendler/v2_5';

        $body = $this->GetUrl($url, 'Requesting bank list');

        if ($validateXml)
            XmlValidator::ValidateBankList($body);
        return $body;
    }