I didn't bother to call up CSR's when I got the instant approval for the "Platinum" CO card. I'm glad because everything is on track. The "Platinum" label is not so significant (maybe higher fee for over credit limit, etc.). Same bonus miles, and, I suppose, $50 statement credit? I received the card today and it's the "Plus" card. I already got the email saying that I'm due for the nice 25K .....BONUS!