I just booked a regular car rental reservation at the National Website. We have an Emerald Club Card but when I logged into the site using our Emerald Club number I was unable to reserve the car on-line. So my question, is, can I still pick off the Emerald Aisle since we have a card, or not, since I didn't book it using the Emerald website? I've always found that we have to go to the counter anyhow since we have a coupon ($20 Entertainment book coupon).