Hoping someone has some insight on this... for years have used Delta Platinum Amex. In December, upgraded to Delta Reserve to utilize the SkyClub access instead of paying for it separately as well as the upgraded companion fare ticket (booking in C+ or First). I just went to book a flight using the certificate and it's still showing my Delta Platinum card in My Wallet, and thus, only showing flights avail in Main Cabin. Any idea how or when it will change over to the Delta Reserve I now have (it's the same card number as my previous Platinum - was just an upgrade, not a new account).
Thanks for any help!