Marking your invoice unpaid from your computer.
1. From your computer, login into the Manage Account Website.
2. Click on Invoices on the left navigation.
3. Click on the dollar sign icon to edit the payment you want to remove the payment from. This opens the invoice in a new window.
4. All of your payments for this invoice displays. If you only have one, then click on that one, and it opens the Edit Payment page.
5. The Edit Payment page has a Delete button on it. Click on that, confirm that you want to delete the payment, and it will be gone.
If you only had one payment for this invoice then this will mark your invoice as unpaid.