If the standard CRON setting appears not to be running, then you can try this alternative.
FTP to the site in question an rename the file cron.php to cron2.php
Go to cPanel and use this cron instruction:
Every 5 mins (*/5) run: /usr/bin/curl --silent http://www.name-of-website-running-magento/cron2.php > /dev/null
Real example:
