Can you test the mail function as per the directions in this blog post –
http://www.butlerblog.com/2012/09/23/testing-the-wp_mail-function/
Also, I hope you received email when you created your user id and hope you are able to receive comment notifications too. In most cases, this is a site configuration issue or the mail landing up in the spam folder.
If you still have trouble, pls email me a temporary login to your site or leave a private message here with the login mand I can try to find out what’s happening. Thanks.