Thought I’d share this... any time I’ve made an online change to my reservation, if I go to the first section titled “Vacation Offers” and click “Change”, I get a notice saying there are no other offers available at my hotel for the current date range. However, if I go to the section titled “Resort” and click “Change”, I get a full list of resorts with availability, under all discount offers that may be applicable for my dates, including the resort I’m already booked at if it really does have availability. Or, try the section titled “Room Type” and it will bring up choices at your current resort there. Each time I’ve done this I’ve been able to apply a new discount offer to my existing reservation (assuming there really is availability - I always check outside of my reservation on the regular site first). Just wanted people to know because going in the first way makes it seem like there is no availability, but there really may be if you try another way! Quirky Disney site... so frustrating.