The daily limit is either due to a limited budget, although they claim they are not new to this business, or is a sleazy tactic to keep the user's money hostage for as long as possible knowing that most users can't resist the temptation to spend more hoping they will double their profit.
As I suggested before, the best way to solve this issue, if they are not going to remove or at least increase this limit, is to add a vault feature where gamblers can lock their funds.