The 200% casino bonus triples your first deposit, which means if you deposit £100 they will give you a bonus amount of £200 and you will have a total of £300 to gamble with.Ī fairly common mistake is that a 200% casino deposit bonus doubles your deposit, that is not the case. It’s the casinos way to attract new players and give the chance of trying out their casino with an extended amount of money to gamble with. The bonuses we list here are welcome bonuses, it means only new UK players are eligible for these bonuses. Terms & Conditions How does 200% deposit bonus casinos in the UK work?