Gambling business is admitted to be one of the most lucrative commercial activities in the world. It comprises both real casino establishments and virtual gambling resources collectively called online casinos. Virtual gambling has rapidly gained worldwide popularity due to open opportunities to gamble for people of different classes.

Gambling relies on money betting; online gambling implies registration. Potential gamblers are required to complete a signup procedure filling in an application form with personal data (to monitor players’ maturity) and other details. Registration being accomplished, users are given personal page and a virtual gambling account which is supposed to be used when placing bets. This type of online account is made to accept all possible kinds of payments: direct transactions from a user’s banking account, SMS-messaging, online money transfers, scratch cards’ account top up and other options.

Scratch cards are pieces of hard paper with a line covered with a film needed to be cleaned off in order to expose numbers which are used to: add funds on gambling accounts; confirm receipt of a bonus (for example, bingo sites free sign up bonus online number is expected to be typed into a special slot and sent as sufficient acknowledgment of a user’s consent to receive a bonus promotion); play instant lotteries (lottery scratch cards), etc.

Scratch cards online are introduced as virtual replicas of their hard paper analogues performing same functions. Free scratch cards are a type of virtual cards available at lottery (or other) websites as attraction of potential players.