User has a client who made a mistake and needs to reverse the ePayment and repay the invoice.

To handle this situation:

1. From the side menu, open Accounting > Deposits.
2. Find the deposit with the same date on which the client paid the invoice. Keep in mind that if the user was charged a processing fee, the deposit amount will not be the same amount found on the invoice. Select the deposit on the grid and click Actions > Delete.
3. From the side menu, open the Billing > Payments screen and select the payment for the invoice. 
4. Click Actions > Delete. This reverses the paid status of the invoice and resets the ePayment status. The client can now repay the invoice.