Seems to be a call centre when I called back the young woman acted like she couldn't hear me and said hello a few times and hung up when I asked who they are and how they got my number.

Sick of getting fake calls

Caller: Don’t know

Same version of this number but ending in 9.
Canberra number.
Called.
Didn’t leave a message.
Blocked.

Claim to be govt solar panel rebates Indian scam all over it