The night closes when three things agree: the vouchers in the safe at the start, less those sold, plus those cashed back in, equals the count at close; every cash-out was paid at the posted rate; and every dancer has seen and initialled her own slip.
Pick a dancer. This is the page she sees: every cash-out, the face value, the deduction at the rate posted that night, and the cash in her hand. The club sees exactly the same.
The cash-out deduction and the card surcharge are the club's own rules. Post them here with the day they take effect. A rate can only start today or later — changing what a past night was worth is refused.