They said..
Can the person responsible for this phone please contact Aman Delaforce on (02) 8651 5076.

I don't know anyone by that name or number. I tried to google the name it came up with nothing and the number is not even registered as a business or a person. I think it's a scam

I called them back but the lady said: "I can not divulge that information" when I asked her who she worked for.

I called back number (02) 8651 5076 reached voice mail but did not say for what company.