Kindly note that surveys and rewards are not sent by PanelPlace. They are sent by survey panels directly.
Personal demographic and profile data regarding members is only shared on a singular summary or aggregate basis. These data formats describe the profile and demographics data of a Panel Member, or group of Members, without specifically identifying an individual Member.
Therefore, when research company's client want this data, they must ask you to provide it to them directly. This is why you will be asked for the same or similar question(s) in different surveys.