Top Class Bingo reviews and player ratings. Popular Bingo is an independent online bingo review website. We have tried and tested Top Class Bingo, we have played the games and gone through the welcome bonus process and here is our opinion. Top Class Bingo exploded onto the scene with a bright purple theme and a bunch of bonuses. This Dragonfish bingo site uses the best in modern bingo software to bring their players amazing value. Classy Welcome Offer. We’ll give you a 100% welcome bonus plus 50 FREE SPINS on your first deposit of just £10. This means that if you deposit £10, you’ll receive a total of £20 to play with! The wagering requirement for the Welcome bonus is 30x.