If your order is being refunded to a credit card that has been cancelled or is no longer in use, our card processor, Strip will redirect the refund to your new card automatically. If you do not have a new card, the bank will reroute your refund directly into your account.

For more information, please visit this article from Stripe's support section: https://support.stripe.com/questions/refund-sent-to-cancelled-or-expired-card