who is this?  they don't leave a message or anything

I recieved a call from this Number as well , On mine it left a message because I chose not to answer. The Message it left was some sort of offer / winning contest. This Is Not the first time I have had calls Like this Theres one about winning a trip to mexico as well. Any one know what group is Putting it out ?

Home loan modification BS. This is a work number, you d-bags.

we get this call often.We live in Ontario Canada so a call originating from an area code of Michigan is strange I think.