I can't add my number plate as the app says it's already registered. What do I do now? July 06, 2020 02:12 Updated Please submit a request to the Customer Support team with the details of your query and the team will be able to help you. Related articles I've changed number plate. How do I update my details? How do I add my number plate? I share my vehicle with someone else. If the vehicle is against my account, can the other person also get the parking benefits? How many vehicle number plates can I add to my account? Do I need to use the app to get the centre parking benefit?