Just had a call from 0488 828 524. Rang it back- recorded message just says "goodbye"
Was recently scammed - so might be connected to that.
Will add to my blocked list.

Just say's goodbye when called back

"Hi, this is New World calling in regard to your online survey to win an iphone or $1000 shopping voucher"
I just hung up.

Same deal as previous comments, had this call me twice so far? Tried to ring back off land line, and same result - "goodbye"
0488 828 524.

Tried to convince me I had won a competition I had not entered...usual request for details..backed off quickly when challenged

Same as previous commenter, just says goodbye