HTTP/1.1 200 OK Date: Fri, 17 Apr 2015 02:22:45 GMT Server: Apache Content-Type: text/xml;charset=ISO-8859-1 Content-Length: 194 Connection: close <?xml version="1.0" encoding="UTF-8" standalone="no"?><SecurePayMessage><Status><statusCode>504</statusCode><statusDescription>Invalid merchant ID</statusDescription></Status></SecurePayMessage>