Bets.io offers a 3-piece welcome package for the first 3 deposits you make. The first one is a 100% bonus of up to 5 BTC, plus 300 Free Spins. The second deposit comes with a 75% bonus of up to 3 BTC. And the third and final bonus is a 100% match of up to 3 BTC. The wagering requirement for all these bonuses is 35x.