I have never signed up anywhere for surveys nor do I answer the phone if I don't know the caller. These people call several times a day. Unfortunately, I'm at my limit of blocked numbers.
It's just a survey company. Nothing sinister, no debt collector. Just decline to answer the survey and ask to be removed. You probably signed up to answer surveys online at one time.
I have never signed up anywhere for surveys nor do I answer the phone if I don't know the caller. These people call several times a day. Unfortunately, I'm at my limit of blocked numbers.