Commemorative cards are generally not returned after purchase. However, you can return in the following two situations:
1. If the card replacement rules are met, you can go to the subway customer service center or the ticket window to consult relevant policies and submit relevant supporting materials, such as the purchase order number and fault card, so that you can change the card.
2. If the subway commemorative card has been activated, it may not be returned.
The specific policies and procedures for card refund may be different due to factors such as purchase channel, commemorative card type and purchase time. I suggest you go directly to the subway customer service center or the ticket window to get a more accurate answer.