there are slot bonuses out there that are plus EV. I personally find playing slots boring as hell and therefore don't participate in the online casino bonuses that exclude blackjack. If you've deposited your money and began betting I'm afraid you've got no option but to wager it through.
Or you could try sending a nice email to the casino requesting a withdrawal of your deposit only and forfeit your winnings if any. They wouldn't have to grant this request as you are now bound by the terms and conditions. Always read them carefully before depositing money.
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