How to use a promo code?

Should you be so lucky to recieve a promo code, simply navigate in the APP to the three bars from the top of your screen and select "Payment". Find the option to add your promo code just beneath your current payment method

Now all there is left is to write the promo code and click "Redeem Code".

Now your extra parking credit is visible in the previous screen. Before you start a parking, the credit will also show on the parking screen.