I did for the package I currently have. I booked the free dining package using the visa code this spring (we leave in 2 days). I paid the $200 deposit with my disney visa, as needed. Then when it was time to pay the remaining amount, I logged into the disney website and pulled up my reservation. next to it it said pay balance. I clicked on it and there was a space for you to pay with your disney rewards card. I used my card and paid. Since my balance was only $286, I did not need to use my credit card in addition to the rewards card. There is mention of it on the payment page. I guess the page will come back after it applies the reward money, then tell you what your remaining balance was. I was a little nervous at first, then logged in and all looked great. I logged into my disney reward page and it showed that I paid the disney package with it. So my free dining package for 2 adults, 4 nights at pop and 2 one day tickets, only cost me the original $200 deposit, as I used my free reward money to pay the remaining $286 balance. Pretty good, since we both have AP. Airfare and rental car was our only other expense.
