I just received a call from this number too and when I answered a young man said that he was calling from Facebook and he was calling because a recent survey I completed stated I was interested in furthering my education. I told him I didn't believe I would have completed any such survey on Facebook so he thanked me and told me to have a nice day. He was polite but I'm concerned that now they've made contact with me then I'll probably keep getting more and more calls. If so, I'll just block it.