Can I limit my contest to only some countries?

Morgane Lejeune -

Important : this option is available ONLY for Facebook campaigns

This option is not available in every account. Please, contact us if you want to activate this feature in your account

Go to the "Welcome" step of your contest. Near welcome screens you wil fin a  "not authorized countries" tab. Mention the countries that will not be able to access the contest. 

You can also set a message that will be visible for the non authorized countries.