I think it is fundraising for the Australian Conservation Foundation. I have had several calls from them

they called me on a number that is now >4years unused. Where the hell did they did my oldest number from?

Received a call today from this number on my personal mobile.  Stated they were from My Home Care.  Then stated they were my carpet cleaners.  When I said that I never used them she hung up.Most likely just another telemarketing company which has somehow found my mobile...

No idea either, called me today too but no VM. Got a feeling it might be Classic Holidays trying to sell me more crap, they'll keep calling until I answer if it is them.

I'm working when I got this call. I did not hear what she said clearly.

this number has called my mobile 3 times but not left a message.. I refuse to be charged for possible nuisance calls, so will not call them. If I find out who they are I'll note it here... I'm also in Sydney and the number is Queensland...

Received a call today from this number on my personal mobile.  Stated they were from My Home Care.  Then stated they were my carpet cleaners.  When I said that I never used them she hung up.

Most likely just another telemarketing company which has somehow found my mobile...