A refundable warranty worth a maximum of 3-month rent is requested on the day of entering the property. This warranty is either paid into the landlord’s bank account or it is held as a bank warranty (it stays in the tenant’s bank account but only the landlord can have access to it and so until he/she releases it back). The landlord can only use the warranty to cover the costs of damages incurred by the tenant; under no circumstances does it replace the payment of rent.
Attention: the setting up of a bank warranty generates bank fees.