RFID or radio frequency identification is a technology that can be used to identify yourself at a charging station. When you sign up, you can buy a set of RFID's at the cost of 10 euros (incl. shipping). With these user specific RFID's you can use a charger without using the Virta app. The set includes one keychain RFID and one card RFID.
Where can I get myself RFID tag and card?
If you chose to not order a set of RFID's when signing up but later changed your mind, don't worry. You can still order a set in the Virta app or customer portal