Take a look at these common tips that might resolve your issue with the Facebook tasks.
- Be sure you are logged into Facebook in the same browser you are using for Pear.
- You may have trouble doing Facebook tasks if your Pear account isn't linked to your Facebook. Make sure you click on "Yes" when the box to accept the necessary permissions pops up.
- Make sure you are completing the task on the group's page. If you are trying to complete the "Like the brand on Facebook" task, you'll need to complete that directly on the groups sponsorship page. You won't receive any credit if you do that on your own Facebook account.