Missed call from unknown number. No message left so blocked

I don't have ay contacts in NSW (02) and as no message was left, I have blocked this number.

Caller tried to tell me I had enquired about a low interest loan with them, said the company name so fast (twice) that it was incomprehensible. I have made no such enquiry and I told her as much telling her she was a liar and a scammer. She hung up.