Here's the Disney Visa info. I didn't get an email either. Just found this on Mousesavers.
Disney Visa Spring Villa Package Offer
Disney Visa cardholders can get up to 35% off the room portion of vacation packages at select Walt Disney World Deluxe Villa resorts for stays between April 3 and June 30, 2016, plus get a FREE ticket day (essentially $10.65 off) when you add tickets of at least 4+ days. You can also add an optional dining plan (at full price). This can also be booked as a
room-only offer.
This offer is only good for stays at Old Key West, Saratoga Springs, Boardwalk Villas, Villas at Wilderness Lodge and Polynesian Villas & Bungalows. As with all Disney promotional discounts, some resorts, room types and date combinations will not be available. It’s important to be flexible if you want to book a discounted room. You must place an immediate deposit using a Disney Visa card when booking.
Book by 2/28/16.