I found that all 365 day plans cannot call 13xx numbers now.
They removed the ability to quietly however the likes of Kogan mobile still have this enabled.
I found this out when I could not phone Virgin Australia, phoned Vodafone they advised they made a change. Food for thought.
Calling a 13 number, a 15 number, a 18 number or a 1800 number
Oh, that could be an issue for them if they have outright blocked it, because some essential services run off 13 and 1800 numbers.