Answered the call and they hung up

Asian accent re solar rebate, I have had three calls today and told them I am not interested and hung up, they keep ringing back.

Caller: Tax scammers

Asian/Indian Telling that I made a mistake on my tax return & I did not claim my obscure tax refund I'm entitled to, if I would now give him my full name tax file number & DOB to confirm he was talking to the right person & then my bank details he could process my refund immediately & the money would be in my account within 7 business days, I said oh please just give my refund to our farmers they need it more than me & the caller hung up (I know it's a scam as I retired in 2002 & dont submit Tax return)

Received a call from this number. Caller spoke with an Asian accent. I hung up

just rang then hung up no message