Got my Card last week. Called WDW CRO once and asked about 7/4 and got quotes for all sorts of stuff but not 7/4. Called again, different reservationist and just like everyone says, I got a different answer.
The individual this time was very pro-active and said she knew of it but needed to find the code. She asked her Supervisor, got the code, checked the first six digits of my card to see if I qualified (I guess it has to be a recently opened account) and I did.
7/4 package is 7 nights for price of 4, regular dream maker package plus $100 in Disney reward dollars. Works out about $900 less than regular dream maker package not counting the $100 in reward dollars.
Moral of the story: If you don't get the right answer, call again!