So now I have unlimited calls to 'standard numbers' (which I assume is normal landlines and mobiles but forgot to ask), unlimited texts (although I had 2500 before and the most I ever used in a month was 15 I think!) and 500Mb more data. Woo hoo!
The plan change was free and lasts the remainder of my current contract, after which I can re-sign, change handset etc as per normal if I want to.
I gather international text costs have gone down too - 20c now - which is good for those of us with family overseas; also ringing UK and USA is capped at $2 for an hour which is good value.
So...well done VF!