"Congratulations! You have won $2600 toward an all-inclusive vacation in fabulous Cancun, Mexico"

This is a fraud campaign currently active in Canada using a series of Iristel VOIP numbers.  The objective is to obtain your credit card number and drain your account.

If you attempt to "opt out" your number will be confirmed as live and added to a suckers list for repeated future calls.

Just got the call but ignored, of course.