There are so many ways that scammers can trick you into paying them. They might pose as governmental agencies or visa experts promising you a Green Card to the U.S, which you might have been hoping to get. This can lead to you falling in their trap and becoming a victim of fraud.
A suspicious or possibly fraudulent web site: Does not have an “About Us” page. Does not publish its street address and phone number on the contact page. Asks you to pay a fee for unknown services or for services that are not required, such as attorney fees or administration fees. Guarantees that you will win. Offers a gift or free airline tickets (these are called “incentives”) if you register on the site and pay a fee. That is false if the cost of the gift is as much or more than they are asking you to pay.
Be on the alert for fake web sites.