Automated Direct Debit Instruction Service An enhancement to the Direct Debit service. The Originator keeps the original paper Direct Debit Instruction signed by the customer and sends the details to the paying bank electronically to validate and, if accepted, set up the new instruction on its database. See Mailbox.

The Automated DDI Service, the system for electronically lodging DDIs

The Automated Direct Debit Instruction Service. The automated service used for electronic lodging of DDIs, as used by DataCash Direct Debit. See also AUDDIS Paperless