When you attempt to call this number back they say they are not taking calls at the moment. very annoying

I also received a call from this number on Tues 3/10, its a scam about saving tax and paying it off your mortgage, I reported it to ACCC

On principle, do not reply to unidentified callers as I have had too many that are cons or cold call sellers, and they refuse to tell how my number was obtained. Even many genuine wrong number callers do not bother to offer an apology.

when called back said not accepting call from this mobile.

Same as the above.

Junk call

Not taking incoming calls when you call the number back

was looking for my dad

Obviously a sales call.

‘Optus advises the number you have called is not accepting incoming calls’ probably some idiot debt collector....

They have called me every day for a week, not left a message. When I call the number back it doesn't ring.

Received calls from this number twice . No one at the other end . If called back advised via message bank Optus advise that this mobile is not taking incoming calls .Some sort of spam - block number