HTTP/1.1 200 OK
Cache-Control: private, max-age=0
Content-Length: 944
Content-Type: text/xml; charset=utf-8
Node: VENUS
X-Powered-By: ASP.NET
X-AspNet-Version: 4.0.30319
Date: Fri, 15 Feb 2013 14:10:53 GMT

<?xml version="1.0" encoding="utf-8"?>
<Response>
    <merchantreference>123456</merchantreference>
    <datacash_reference>4300200042810537</datacash_reference>
    <reason>3DS Payer Verification Required</reason>
    <status>150</status>
    <CardTxn>
        <ThreeDSecure>
            <acs_url>https://secure.barclaycard.co.uk/barclays/tdsecure/pa.jsp</acs_url>
            <pareq_message>Some PaREQ</pareq_message>
        </ThreeDSecure>
    </CardTxn>
</Response>