It would seem everywhere you turn, someone is doing some form of giveaways free stuff. What companies are trying to attract and try to get as many people interested in what they give. This will help the company put its name more and more.
One person may not need the use of what the company currently gives, but when it comes to time, the company would have already planted the seed of this customer to use their services. Giveaways free stuff is a great marketing scheme to get people interested in what they sell. You can check out the more about giveaway winner generator at https://osortoo.com/en/blog/105-the-best-app-for-picking-a-winner-on-facebook-instagram.
Companies go, in different ways, gifts are free stuff to promote their self. Popular ways are on the social networks that are available. They know that people connect to these social networks every hour, if not every day. They will give the very attractive gift to a certain group of people and that these people will be more than happy to sign their name and provide additional information to get this free article.
They do not see what the harm is to put his name and his phone number on a card. There is usually no problem at all. Companies will then take these names and pick on at random to see who the winner is. One lucky person could be the new owner of a car or some other item they will be happy to win.