RSS feeds in Joomla are difficult to guess and the best course of action would be is to contact a person from the website itself and ask them to send it.
Generally speaking, Joomla RSS feeds look like in the examples below:
http://your_joomla_url/index.php?option=com_content&view=category&id=14&Itemid=473&format=feed&type=rss (for RSS)
http://your_joomla_url/index.php?option=com_content&view=category&id=14&Itemid=473&format=feed&type=atom (for ATOM)
If you don’t receive the email in the next 2 minutes please check your junk folder, and add [email protected] to your safe sender list.