Thanks, all - saw that this number had called in my absence, added it to our call blocker box. Never have responded to any unsolicited calls in my lifetime, and for the remainder of it this won't happen either.
Got repeated calls from this number. I answered the call by saying "Congratulations!! You are our 10th caller what is your First Name & the town that you are calling from" She replied "Ari (could be Arrie or Ary) " I asked her what city is she calling from & there was a long pause (conversations in the background) & then she said "Thank You" but "No" & she hung up