Site Visitor says "No Thanks" to chat, the slide out window is still popping up

Content

Hi there,

We monitor our site feedback via Usabilla, and have received negative feedback in response to our proactive chat offering.  A site visitor stated that they have selected "No Thanks" when prompted with our chat slide out, however the slide out keeps reappearing.

Has anyone experienced a similar issue or have ideas regarding how to troubleshoot?  I am unable to duplicate on my end.  Visitor was in Windows 7, IE 11.

Thank you! 

Version

Service Cloud Proactive Chat Widget

Code Snippet

             --------\/------------
 
<!-- Chat start -->
<script type="text/javascript" src="//insight.custhelp.com/euf/assets/js/ee.js"></script>
<script type="text/javascript" src="//static.atgsvcs.com/js/atgsvcs.js"></script>
<script type="text/javascript">
  ATGSvcs.setEEID('200106308287');
  ATGSvcs.ESTARA_HOST = 'as00.estara.com'; // PagePeek Support
  (function() { // Enable EE driven widgets
    var l = 'insight.custhelp.com',d=document,ss='script',s=d.getElementsByTagName(ss)[0];
    function r(u) {
      var rn=d.createElement(ss);
      rn.type='text/javascript';
      rn.defer=rn.async=!0;
      rn.src = "//" + l + u;
      s.parentNode.insertBefore(rn,s);
    }
    r('/rnt/rnw/javascript/vs/1/vsapi.js');