The advertisement below: "You’ve been selected from the - region to take part in our annual visitor survey", is a fake. If it pops up on your computer screen, please close the popup window and do not take the survey.
The Fake Advertisement Survey Scam

Congratulations!
You’ve been selected from the [emoved] region to take part in our annual visitor survey.
This will only take 30 seconds of your time and will enhance user experience. Upon completion you will have the opportunity to get a Macbook Air®, a Galaxy S4®, or an iPhone 5®.
The message claims that you have an opportunity to win Macbook Air, Galaxy S4, or an IPhone 5, if you complete a survey.
If you complete the survey, you will be redirected to another advertisement or taken to an ecommerce website offering you products to buy. You will not receive any of the products the advertisement claims that you have a chance to win.