Delivery of electronic record: authenticated electronic service and hash-based acknowledgement govern notice, order, and response under the Scheme. Notices, orders and other electronic communications to appellants must be delivered by placing an authenticated copy in the appellant's registered account, sending an authenticated copy to the appellant's or authorised representative's registered email address, or uploading an authenticated copy on the appellant's Mobile App with a real time alert; responses must be submitted through the registered account and are authenticated when the National Faceless Appeal Centre issues an acknowledgement containing the hash result.