Someone made reference to this in another thread, but I thought it might be easier to keep track of this issue with a separate thread, and see if we can work out if there's a common factor.
We have five active 2Degrees sims in our family. Now that the Your 2Degrees site is back up, I took a look at the excellent itemised summary of usage.
Four of the five sims' usage and pricing is as expected, but one sim is being charged 44C for calls to landlines and other 2Degrees numbers, despite being topped up by $20. When you top up, calls to such numbers should be at 22C for the next 30 days.
I logged a fault, and 2Degrees say someone from their technical team will call back during the week.
Incidentally, it's good to know that when they say they'll call back, they do, at least in my experience to date. A bit of a sad commentary on our mobile phone industry that I'm surprised by this.
In my case, the other four sims were purchased, whereas this fifth sim with the charging discrepancy is one of the free chinwag sims. It was topped up on Friday 7 August in the evening.
It might pay for everyone to check their spend.