I came across this article today which unfortunately is only available in American situations but just imagine how wonderful it would be in Australia!
For Skip Waiting On Hold, DoNotPay built out a database of priority and VIP customer service numbers for tons of companies. For legality, if you opt in to recording the exchanges, the app automatically plays a message informing both parties they’ll be recorded. A human voice detection system hears when a real agent picks up the phone, and then rings your phone. It’s like having customer service call you.