At sweepstakes casinos, this will be via bank transfer. Regulated casinos in PA/NJ and elsewhere offer a mix of transfers, electronic wallets or paper check withdrawals. They can give a repayment and/or trigger a bonus round whenever you accumulate enough. They can assist when it comes to getting “gratis rotations” raising the endpoints. Lastly,you can tap the bonuses even though you haven’t selected all existing pay lines.