You can make a refund for a job by going to the jobs list page where you will see a list of jobs. On each row of jobs you can click on "open menu" then click on "Refund Payments". A dialog will open where you can make refunds for charges.
You will then see a dialog that show the charges that were made for the job. Click the check mark next to the job to refund the job. The balance of the job will update.
You can also make a refund automatically when