Some DP. On October 6 I activated Rose gold card and then I requested to get the gold card on Oct 11. I activated the gold card on Oct 19. I kept my Rose gold card that I got on Oct 6 and tried it a couple days ago to see if its still active. The charge went thru when the merchant swiped it. So the card is still active. I tried it again today and charged went thru. Today CS told me that old card stays active for 45 days before it stops working. Both cards have different expiration dates and 4 digit code.