Can't unsubscribe from this domain monitoring service!

[admin]

I recently signed up at <!-- m --><a class="postlink" href="http://www.vyapari.com/whois/">http://www.vyapari.com/whois/</a><!-- m -->, to monitor few domains.An automated email is dispatched daily, with the days remaining before the domain expires.The problem, is there's no unsubscribe link, in the email message nor on the website.I want to unsubscribe. What do I do?Please help.