No, you will not receive a hotel voucher. Your booking data will be sent to the hotel 7 days before your arrival date. When you check-in at the hotel, simply present yourself with the first/last name you have registered while booking the room online. It is recommended to bring a copy of the booking confirmation.
Please note, you will still be asked for a credit card guarantee and you will be personally responsible for any incidental expenses, extended stay or any other costs that are not covered by the basic room rates.