Sounds like the system worked as intended, you reached out to the telco regulator and the issue was resolved in 3 days. Also sounds like it isn't specifically an esim problem, but an AT&T being a shit company that tries to get away with illegal things problem and in this instance that involved an esim.

I'm more asking about cases where using an esim means the existing regulations don't apply, not instances of some shit company disobeying regulation until the regulator gets involved.