You can edit the Contact Email address through the following steps:

  1. Go to Communities > Forms > Single Step Donation
  2. Hover over the donation form name and click Website Info
  3. Click Donation Form Options
  4. Click the Confirmations tab
  5. Make any edits to the email address
  6. Click Save
  7. Go back to the Webinfo Checklist and click Publish This Event Now to make the change active in the form