It was a missed call on my mobile & when I called it back it was a foreign female recorded voice stating:- "Thank you for calling Diamond Plaza, all our operators are busy. Please hold so that we can put you onto the next available operator".
I Googles "Diamond Plaza" & it is in Ho Chi Minh City.

Message is now supposedly from PayPal accounts and a $799 credit to your account. SCAM

2nd random call from unknown number supposedly in Bathurst NSW to mobile. I did not answer and caller did not leave message. I called it from a landline. Recorded message from 'Diamond Plaza' in American accent saying I was in the queue. Website search shows no Diamond Plaza in Bathurst, only Vietnam. Assume scam and/or telemarketing call.

Scammers

I just got the same dodgy phone call allegedly from PAYPAL. About a suspended transaction for AUD$754, advised me to respond option1 to stop the transaction. This is a FAKE as all get out. Do Not respond to the message, but report it a a spam call.

received call but they didn't leave a message after reading all your reviews (thank you) i believe it could be paypal scam as getting emails re paypal invoices which are not real

Shows on my phone as being a call from Bathurst - now blocked

Caller: Scammers (commonwealth bank)

Fraudulent message stating that commonwealth bank money has been deducted unlawfully press 1 to cancel this payment as otherwise $500 will come out of your account.

Left a message, fraudulant transaction immedialty press 1 to cancel or 2 to approve