An eBill (electronic bill) is an electronic version of a paper bill that you can view online in Bill Payment. 

Once you enroll to receive an eBill, you will no longer receive a paper bill from the biller. Electronic billing allows you to receive electronic bills (eBills) online through Bill Payment. Some payees are able to send eBills to their customers. If you add a payee that is eBill capable, you have the opportunity to request eBills from the payee. Once your request has been authorized, you will receive an eBill from the payee within a month, depending on the payee's billing cycle. You can pay the eBill directly, and you can continue to make single payments to the payee whenever you need to.