No, this feature is not supported by Employee Referrals.
Can eligibility be checked automatically in the tool?
When and how do I get notified about a due reward?
On the due date of a reward, you will be informed via email. Please make sure this type of notification is active, see how here
Why wasn't I informed about a due reward?
In order to be informed via email, the notification "Remind me about due rewards" needs to be ticked. If the notification is active and you haven't received the email, please check your SPAM folder.