Caller came on stating they had been trying to contact me because I had reward points "on my account" that were about to expire, and then they said a key phrase "So lets get started, OK?" I asked for which account and the caller stated she could not hear me.  This happened 3 times and then the caller hung up.  I believe this is a recorded robot call.  The key phrase wants either a "Yes" or "No" response.  I had received other phone calls from a company claiming I had received a fully paid trip to the Bahamas with the exact same key phrase.  I believe this is a scam.