Call from an obviously overseas call centre - but came up as from Cairns. I asked what company he was calling from and he said his name was David. Then he said “answer yes or no do you have solar”?
I told him that it was none of his business and that I am on the Do Not Call Register and what he was doing is illegal and that I wanted my name and number removed from their list. He hung up on me.
Have blocked.

Caller: Call centre - foreign accent.

Call centre - Indian accent, calling about solar rebates.