when I asked for evidence that they were from the ABS they gave a 1800 number that is not valid 18003013.
I declined to answer any questions and hung up

Same as the other review - I requested verification they were from the ABS and he said in a thick foreign accent "Mate everyone asks me the same dumb question, you tell me how I can prove to you?"

... clearly not from the ABS

I called back number 0425 112 652 rang 3 times then goes to busy tone.