If you are entitled to any discounts for your parking session then you can apply them from within the app or desktop site by going to your parking session - Parking > select your session - and either typing the code into the discount box or scanning a discount barcode.
To scan a code, simply press the barcode icon:
Your phone may ask for access to your camera which you will need to allow to be able to scan the code. Once you have allowed access, simply scan the barcode and the discount will be automatically applied for you.
Once the discount code has been entered, you will see the discount title on your active session page.
If there are any issues with the discount code (expired, invalid date etc), the app will display the error message on screen.