Thanks for this, Annoyed - missed a call from 8999 9090. This saves me calling back and getting similarly annoyed.

Scam - pretend to be on behalf of a charity (one of many numbers), every day between 1-4pm.
If you call back you get the same recorded message (best not to)
Same people, different numbers:
(02) 8999 9090
(02) 4899 8008
(02) 5300 5643
(02) 4488 4032
(02) 6314 9522