The Chase Disney Visa is a regular credit card, and you get Reward dollars when you use it. Check your statement when it arrives and somewhere after your purchases are listed, it will show your rewards. If you are going to Disney, use it for everything you possibly can; airline tickets, gasoline, groceries. The Reward dollars add up, but slowly. We even put our DVC purchase on it. Some things you buy will give you an extra percentage, but I'm not sure how that works.
Then, a few weeks before you go, call the toll-free number and have them issue a "Disney Rewards " card. That will be what you use at DisneyWorld. You can use it at restaurants, gift shops, your resort, DTD. The first time, we had over $200 we used for souveniers like good sweatshirts that we would have never purchased for cash, and things we wanted but felt guilty buying. I bought a Winnie the Pooh watch. Once you get the card, you can also transfer credit while at Disney, too.
This trip, we had $191 to spend at Ghirardelli, World of Disney, and the resort gift shop for some breakfast items.
Just remember to not wait until the last minute to redeem the money because they send you a new card and it takes about 10 days. Also, make sure you don't let any expire, there is an expiration date on the rewards. There are people here who think it's a rip-off, we like ours.
