Fixed amount that is offered when you make a certain deposit. For example, casino claims that you get $100 when you deposit $20. With such bonus you end up with $120 to play in a casino. However the larger deposit amount will not give you more bonus money. Thus, if you deposit $50, you will again get only $100 credited to your account.
However one $20 deposit may get you more than the match bonus of a different casino.
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