Caller: Says Macquarie Bank

Says calling from 'your bank'. When asked what bank that would be says Macquarie (not our bank and banks generally dont just call you out of the blue). Wants to speak about special finance deal. Possibly scam. Told caller 'not interested but thanks for calling' and hung up phone. This generally stops the calls after a few times

I called back number 0425 777 572 rang once then gets disconnected automatically.