You can easily undo any contact who was deleted, to bring them back to your contact list.
This also works to undo any contacts who were marked as spam in the Signpost mobile app.
1. Log in to your Signpost account, and navigate to the "Contacts" tab
2. Scroll down to the very bottom of the page, and click on "Deleted Contacts"
3. Scroll through the list, or use the search bar at the top, to find the contact you wish to undelete
4. Click "Undelete" next to the contact you want to re-add
Note: It may take a few moments to complete your request.