Err the deadline was 9/12 - and their explanation was that everything was being custom made in batches.
REQUEST A NEW ART CARD & WEARABLE Choose between the classic black Card or two new limited-edition Centurion Art Cards – exclusively designed in collaboration with celebrated artists. Plus, you can request your new PRADA x CENTURION Wearable ‘Card’ at the same time when you select your design preference. Visit your account online to make your selections by September 12, 2021.