It's a telemarketing service claiming to offer a gift card or prize; they've called me so far from two completely different area codes. Definitely not the IRS.
My 10 yr daughter got a call saying she won a gift card and asked for her name. I called the number back and got and automated system to remove the number. They are the wca offer clearing house a telemarketing
They keep calling my work phone number, leaving NO message, while I am gone. Probably, this is some telemarketing scam! Should I be there, I will not bother to answer.