I got a call from these guys and didn't answer. I called back and it is a scam trying to get you to subscribe to them. If you hit the #5 and then the #2 you can unsubscribe to their calls, but it takes 7 business days to get you out of their system. There is no way you can talk to a real person if you call them.
Just received call on cell phone. Called back and got automated operator. This is WCA Subscription Services. I never subscribed to anything. You were given the option to hit number 5 and cancel but you have to listen to a long nonsense recording about what they offer and then you finally can finish the cancellation process.