It would seem everywhere you turn, someone is doing some form of giveaways free stuff. What the companies do to attract you and try to get as many people who are interested in what they give. This will help the company put their names there name more and more.
Someone might not need to use what the company gave at this time, but when it comes to time, the company will have planted seeds for this customer to use their services. Free Giveaway items are great marketing ploy to get people interested in what they selling.
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The company will, in a different way, do free gifts to promote themselves. Popular ways on available social networks. They know that people enter this social network every hour or more, if not every day. They will make a very attractive gift for a group of certain people and those people will be happy to sign their names, and provide additional information to get the item free.
They did not see what was wrong in placing their numbers and telephone numbers on the card. Usually there are no problems at all. The company will then take these names and choose randomly to see who the winner is. One lucky person can become a new owner of a car or other items they will be happy to win.