The caller claimed that she was doing some survey for research work but did not state the organisation's name. The way she talked shows that she is likely not a professionally trained person. So most likely a scam.

Keeps calling during the day and at evening time

Scam caller spoke with foreign accent phishing for personal details

didn't leave a message, probably spam

Caller: National Field Services

Another “research” studies company. Just no. Why are companies like these still around. Someone must still answer their calls.

Caller: (02) 9184 7079

They called me pretending to be a survey. As soon as they asked me about personal questions, which was pretty early into the call. I hung up.

Heavy Indian like accent, I politely asked them to repeat themselves, but they hung up on me.
I blocked the number as no one I know is that rude.

Didnt say anything. Hung up after ten seconds.