only in my opinion, the filter for canceled rents would be very useful in the rents section ...
maybe you can add a button to rent the card that is expiring directly from the "my cards" section even when the price is higher.
Otherwise, after using the filter for canceled rentals in the "my cards" section, I have to manually search for the cards in the "rentals" section and then rent the card.

for everything else great job ;-)