Called several times over the last month. When I call back I always get the same response: "I'm sorry I must have dialed the wrong number" and hung up. We should all block our phone number from showing and then call them back - just to tie up there phone line.
They called me 2 times in the last 2 days. First time I answered, they hung up in my face. They just called me again today but I didn't answer. Looks like its pretty common from the other comments left.