Conduct market survey interview in Sydney

I have a market research project going on for which i want someone to take an interview in Sydney (or in surrounding suburb) of a chemist. I have already prior appointment with that chemist you just need to take the interview. Interview does not take longer than 20min and I will pay $50 for this interview. Interview consist of following parts: 1) Ask the questions in questionnaire and note down the answers 2) Record the audio of interview 3) Take some pictures of products around Questions shall be such a way that in recording it should not appear that you are reading. Interview is On 14-Oct-16 at 10:00am in North Ryde.