The super inefficient companies don't have the discount on Chase or Disney's websites. The only one with "numbers" is CSR, $199/n for a water view, tower room. The other discounts require a call to Disney for information. Both Visa offers require a call to Disney to book. Nothing online.
Unfortunately, Disney is ill-equipped to deal with a large number of calls and this morning's
free dining/fall discounts have crashed the system. Connecting will be a chore. CMs seem to not have correct info about Visa's offers, since several people weren't able to book due to CMs saying there wasn't anything. It's a circus.
Edit: Dave's post upthread, yesterday at 9:13pm, has the info I saw yesterday on Disboards. It's on the sidebar of "Disney News and Updates". I looked high and low online, too. I called and the CM took care of applying it for me.