Oh sorry, I just assumed it was the standard card.
Once you make a purchase, it posts to your account. Then at the monthly closing date a statement is created and earned points become available to redeem to a rewards card. So for your first redemption, allow about 1 week for your card to arrive. For future redemptions, you simply transfer funds to the rewards card. This can be done online as well as ordering a new rewards card. The rewards card expires eventually, usually around 2 yrs out so you have to keep an eye on things. Also even if you don't redeem any $ to the rewards card, your DV statement will list when any earned points expire which is further out IIRC than the rewards card. So don't redeem until you're close to being ready to spend.
Mine never stick around long.
BTW, you don't have to be stuck with an old rewards card. Ours was close to expiration and I didn't want to take a chance redeeming to it so I ordered a new card then redeemed.