public function maxDiscount($maxDiscount, $discount, $throwErrors = true)
    {
        if ($maxDiscount == 0 || $maxDiscount > $discount) {
            return $discount;
        } else {
            if ($throwErrors) {
                throw new CouponException('This has a max discount of '.\App::make(\LukePOLO\Laracart\LaraCart::SERVICE)->formatMoney($maxDiscount));
            } else {
                return $maxDiscount;
            }
        }
    }