Online Bill Payment (also known as PINless Debit) is a debit payment type used by certain Web-based merchants that have established some type of contractual relationship with the consumer and, therefore, know their identity.
Wireless providers are the largest merchant category using online bill payment.
Consumers may pay cell phone bills online using a PIN debit card, but without being required to enter a PIN.
Since consumer identity is already known, interchange rates are generally lower than card-not-present signature debit.