HTTP/1.1 200 OK
Cache-Control: private, max-age=0
Content-Length: 689
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 14:06:34 GMT

<?xml version="1.0" encoding="utf-8"?>
<Response>
  <merchantreference>123456</merchantreference>
  <reason>Invalid CLIENT/PASS</reason>
  <status>10</status>
</Response>