You can block even WITHOUT a smart phone. Consider a call blocker, which are available on Amazon for 4000-5000 CENTS. Look at previous posts to get an idea who you're dealing with. I'd say it's a worthless survey that helps callers figure out how to and what to spam you with, along with getting personal and maybe even financial information, too.
Willey asked to speak with her. I said she just passed away with heart attack because a survey company took her credit card. ;) left a note behind. They Instantly hung up.