This type of bonus is an incentive for those who refer their friends to the casino. If a referred friend makes his or her first deposit, the customer receives $50 as a gift. To do this, customers should enter the lobby of 21Nova and click on a special button with the inscription Refer a Friend. Then the casino administration sends invitations to friends, telling them about the opportunity to join the virtual casino. If the friend follows these instructions, the player receives a reward that reaches 50 dollars. Wager for this bonus is equal to 12, i.e. the total amount of deposit and bonus should be wagered at least 12 times. Some games (blackjack, roulette) have other requirements provided by the wager. In addition, to get the bonus, the friend should deposit at least $50 and stake at least 50 dollars or 100% of the amount that is equal to his or her deposit (the deposit amount does not make any difference.) Only those gamblers who have made their first deposit may refer friends. Then they have an opportunity to participate in this promotion. The referred friend has the opportunity to receive a bonus for his or her first deposit.