The minimum deposit required for the first bonus is €15, whereas, for the rest of the bonuses, it's €20 per bonus. 4th deposit: 25% up to €450 bonus + 45 free spins on Imperial Fruits: 40 Lines.3rd deposit: 25% up to €400 bonus + 40 free spins on Solar Queen.
2nd deposit: 50% up to €350 bonus + 35 free spins on Legend of Cleopatra.