Enabling the Self-Edit tool is a great way to save time by allowing your participants to perform basic updates and edits to their own registration so that you don't have to!
After Self-Edit has been enabled, you can use the Participant Management chapter to assist your participants
Also, your participants can use our Consumer Support help center and support team as a resource to resolve any registration questions they have: http://activesupport.force.com/usersupport