You may want to review your participant's supporter list.

How to get there:

Login to your GivingForKindness account.
You'll be on the Campaigns window of the Control Panel.
Choose the campaign's name or the edit link to the right of it.

What to do:

Click on the Participant tab. 

Scroll down to the name of the participant you’d like to review, or enter their last name in the search box. 

Click on the third action item, the supporter button (dollar sign) adjacent to the name and the next page will display the list of everyone that this participant has sent an email to, the status of that email and if the person donated to the participant's campaign, the amount that they donated.