Hi,
If you add a user to your blacklist it will stay there indefinitely. Also, right now there's no option to remove the user from the blacklist in your control panel, only we can remove it through our database.
However, we are working on upgrading the app so that you will have such an option in the future.
So be sure to join us on Facebook to stay in the loop!
Best regards,
- Tzipi.
