In addition to the monthly payment, a one-time enrollment fee applies when you sign up. This fee is displayed online.
When renting a car, it is also common to leave a deposit as security for the rental car. This deposit amount is reserved on the means of payment upon collection and depends on the rented vehicle group. At the end of the first 30 days, the deposit will be released automatically again to your payment method.
You are also responsible for any fees and penalties as enumerated in each rental agreement, unless such a specific fee or penalty is specifically excused by the terms and conditions (the "Miscellaneous Fees"). These include but are not limited to tolls, speeding tickets, parking tickets, etc.