Yess it is a scam...Don't call them back!

told me i had wont $950,000.00 Who else has received these calls? Is it a scam?

My son-in-law was charged for the five minutes-on his cell phone- with this number listed as the call number.  The cell phone service he has is in my name and I am being charged $8.10 for this call.  He says he did not make the call.  The number is listed three other times on the bill with no charges.  What is this?  I do not want to pay for a call that was bogusically charged to my account.  The number search I did came up with the area of Jamaica.  Is there some kind of scam going on with these calls?