I never answer calls from numbers I dont recognize and then check them out in places like to verify the number before moving forward. Information like this is good to know!
I just got the same call - at 11 AM on a Saturday! Said they were from something "Positions" about a Survey I took - no mention of what survey that was. Like everyone else, I assumed it was a scam since they didn't address me by name or say exactly what survey it was. No staffing agency calls like that, on a Saturday no less. I just hung up (I needed to pickup because I am expecting a contractors staff to contact me.) .
Next stop is filing a compliant since I've been on the Do-not-call list forever. https://www.ftccomplaintassistant.gov/