Concession cards are widespread in Australia and each state has its own rules and provisions. As an Embedded Network Operator, you'll need to calculate the concession amount and either show it or apply it to each electricity invoice.
Depending on which state you are based, owners of apartments can be responsible for paying cold water charges instead of tenants. Also, remember these don’t attract GST!
Direct debit and prompt payment discounts as ways of increasing collection rates and failing that, prompting customers with SMS messages and reminders to their inbox.