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.
Called two days in a row both times after 7:00pm. Tonight they mentioned my wife by name saying they valued her opinion. Doubt they are truly random calls versus a purchased list or list provided by a client. Asked to be taken off of their call list. They said they would.
They phoned again tonight at 6:48. I answered saying I had asked off their list. She replied her records showed this was the first time they ever called. I said BS. It is the 3rd time they have called this month. Professional but still a .........
Fuc*ers have called as many as 5-6 times a day sometimes within minutes of each other. Have the call blocked. I laugh each time it rings once and goes dead from the blocking!