A payment may fail if on a registrant's payment plan if the credit card they are using at registration gets canceled by the registrant or expires and the registration doesn't update their credit card information. If the registrant follows the instructions to update their credit card and pay the amount owed, they will be removed from the failed payments area.
Step 1: Log In> Select the Admin Control Panel> Select Financials
Step 2: Select Failed Payments
Step 3: If you have the registrants credit card information you can select 'Make Payment' and enter in the information. If they want to update the information advise them on these instructions.