It is good to have good friends: make use of Referral Bonus.

Casino Promotions on Bingo Splash: Referral Bonus

If you invite friends to play with you at Bingo Splash, you will receive Referral Bonus, a 50% bonus on their first deposit.  That deposit should be over $20.

Your name, nickname and and email and friend's name and email are required while inviting a friend. Ensure your friends add your nickname in the referral box when signing up.