Referrals should only be deleted if they are created in error. Even incorrectly assigned Referrals are worth keeping as they show the history of the Log activity. Referrals are deleted from within the Log.
for the Referral to be deleted.

WARNING: - if the Referral you are deleting contains children, all the children will also be deleted. For example, if the Referral to Office B in the above sample is deleted, the Referral to Office C will also be deleted.