Every year York University hosts the National Bank Open and they partner with HONK to provide guests with promo codes at purchase so you can register for parking for free.
Common zones that are used during the tournament are accessible through the app only by entering the ZONE ID directly 'Find your spot By Zone ID', or by clicking the links directly Lot B (ZONE TCB), Lot C Daily (ZONE TCC), Lot C Tournament Duration (ZONE TCC) and Lot F (ZONE TCF).
You can enter the promo codes at checkout meaning you have to go to the zone, choose your rate and then add the promo code before payment (see screenshot below).
If you accidentally completed your purchase without a promo, please repay and let HONK Support know.