The US equivalent to the ACCC is the FTC is absolutely toothless and ineffective. The ACCC has teeth and has had real impact on many industries. For example, ISPs were essentially forbidden from saying their plans were "unlimited" unless they actually were unlimited (which they never were so there were no "unlimited" plans, which is fine because they were all fake anyway).
This particular complaint is about something relatively minor: misleading messaging about cancellation fees. Like do you think that didn't happen in the US? Where's the FTC action and settlement on that?
As for the fare estimation part, it's hard to say what the impact of that was.
The only US equivalent to this is a class action lawsuit where the lawyers get paid (a lot), several lead plaintiffs will get paid something and everyone else will get a check for $2.35 in 8 years after printing out a form and mailing it in.
Even in the really egregious cases like the Equifax hack, the cash settlement part was capped at $31 million [1].
[1]: https://www.nerdwallet.com/article/finance/equifax-data-brea...