Thanks all. This is beyond ridiculous - one second a call with no name or number and the next this one. No message on either one. These idiots need to get a real job.
"Hi, this is Julie with Reward Redemption! You recently visited one of our affiliate websites..." I called the number back (blocking my number from their view), and that was part of the recorded message. I believe this is a set-up at best.
Another unwanted call on record. I was told to keep a record and record the call. Paper and digital records will help the lcal authorities on investigations.