Is there a safeguard system in place to protect me against making duplicate payment mistakes?
The electronic bill payment processing center maintains a valuable safeguard to prevent duplicate payments. When more than one identical payment is requested for the same payee, amount and payment date, the duplicate payment instruction is automatically disregarded. This is important to know in case you should ever actually want to send two identical payments to the same payee on the same day. If you need to send two identical payments to the same payee account, separate the payment dates by at least one day or vary the amounts slightly.