I called back number (02) 9165 4912 reached voice mail for a charity company but did not say the name.

Caller: Unknow Charity

Getting donations over the phone, try to get my credit card number, using credit organization such as diabetes NSW, using Dr Peter Thornes name to get money. SPAM I will say

Same as above called back, some form of charity

Just received a call from this number, no message, blocked it!

No Voicemail left

Sames as the above, I missed a call deliberately from (02) 9165 4912 and called back from my landline. It went to a voicemail saying '..if you are calling from a missed call, this is the number it originated from on behalf of a charity you may support..." I hung up then.