I called the number back a few times. I got someone on the phone that said I have registered with Mobile Money Machines. Which of course I hadn't.
He said my number would be removed from call lists.
I've been getting calls as well (in Colorado). I finally answered and received no response. When I called the number it was just music. Blocking the number. Done with the harrassment.
They keep calling me multiple times a day and it's annoying. I don't have a cell phone.. so it's clear these scammers are using an automatic dialer. They are calling my land line, by the way.