How do I know which way to pay at my car park?

On our app we use icon symbols to show what the type of car park is. 

ParkPass Pay & Display Icondenotes a Pay and Display car park. Any app user can pay at this type of car park, and you pay using a feature within the app in advance, when you're ready to start your parking session.

ParkPass Barrier Icon denotes a barrier controlled car park. Only registered customers can pay at this type of car park, using a QR code within the app. When you register for an account we will give you this personal QR code to scan at the barrier on entry and exit.