" If you use more than your included data we’ll automatically give you another 1GB for $10. If you use more than 150GB on a single billing account we may continue to charge you at the same rates..."
If the Royal Banking commision has highlighted anything, its how a whole raft of Australian businesses have been making money by flat out unreasonable actions. Putting in place systems and responce mechanisms that greatly disadvantage customers and greatly advantage the companies in questions. These typically remain in place over long periods of time, they gather enourmous critisism (which is kept internally hidden). When finally called on it, the standard responce is to say "We regret that some of our customers didn't have the best experience and realise in hindsight that some actions could have been taken sooner - Sorry it was an oversite."
The above clause covers a 30Gb a month plan. So that's potentially $1200 in automatic top ups or a 2000% bump in the monthly cost. On top of that the clause isn't even specific and leaves customers wondering why the "We may...".
I wonder what Optus exectutives would say to a Royal Commission when asked how they felt that clause was in any way acceptable? Would they want their own children to be signing up to such potentially ruinous terms? It would probably be "We regret that some of our customers didn't have the best experience and realise in hindsight that some actions could have been taken sooner"