It's the Subscription Card delivery date, but the recipient claims that they can't find the email.

If the person you've gifted is having issues finding their confirmation email, please have them check their spam or junk folder. If they still can’t find the confirmation email, please contact Disney+ Customer Service, so we can get the details resent immediately. You can reach us 24/7 via chat, phone, or social media.

Note: When contacting Customer Service, please be sure to have your proof of purchase (order number) or the email address you registered with the purchase.