Had a call from these creeps yesterday. Picked up, just heard a beep & silence. I called them right back & got a recording saying it was "WCA Subscriber Services." Then without any other warning the recording said "Your number has been added to our data base." Disconnect.
So I guess I can expect many more calls!
Beware this low class trick! Apparently when you call the number you are added to their list. There must be a special place in Hell for the bums who come up with these scams!