I got this kind of call starting from Valentine's day. In the first call, the lady announced the terms ($25 reward plus they would not call me again) and then proceeded with the questions without even asking if I would like to participate. I told her that I did not have time, and then she apologized and hang up.
But they kept calling me. I missed most of their calls. The last lady I spoke to did basically the same thing as the first lady, announcing the terms, still $25 but pending on my eligibility, proceeding with the questions without asking my permission. When I asked her to send me the survey along with the terms in written form, she balked and we hang up.