VicRoads isn't much better, they privatised the registration side of it recently,
They applied a discount to my rego that I wasn't eligible for anymore,
Then sent me another rego form saying the amount was wrong, and applied a further discount to it,
So I paid it to see what would happen,
Couple weeks later they realised I wasn't eligible for the discount, and sent a very strongly worded letter demanding I pay the balance immediately, or they'll deregister my car