No wagering requirements on bonus spins. From January 17 through January 21, users who bet $10 on Slingo games each day will earn $5 in. . This offer is valid for selected customers only. This offer is valid for selected customers only. From January 17 through January 21, users who bet $10 on Slingo games each day will earn $5 in. 10 Batons de Marina Ruy Barbosa, a beauty post from the blog Pausa para Feminices on Bloglovin'. No wagering requirements on bonus spins. BetRivers Casino has a new offer available for Slingo players. Bonus Spins after first deposit and wager of £10+. 10 Formatos de Esponja Para Você Conhecer Já!, a beauty post from the blog Pausa para Feminices on Bloglovin'. BetRivers Casino has a new offer available for Slingo players. Bonus Spins after first deposit and wager of £10+.