You will not be able to add a coupon to your store loyalty card if you have printed that coupon or if you have already added the offer.
If a coupon says Added, it means that you have already added it to your store loyalty card. You can view a list of all the coupons that are currently on your store loyalty card by clicking on the What's On My Card button.
Some coupons appear in both the printable coupons and Save To Card coupon galleries. If a coupon says Printed, it means that you have already printed that coupon and you won't be able to add it to your card.
Some coupons can only be used at a particular store. If you try to add a coupon that cannot be redeemed using the store loyalty card(s) already added to your account, you will be asked to add a card for the store(s) where it can be redeemed.