If anyone is awake- Disney announced Fall Back to School Savings. I'd recommend you attempt to modify your reservation online and if it is not an option (seems it is not an option for many people including me)- then re-book from scratch and cancel the old reservation after the new one is booked. In my case, I have to call Disney direct to cancel the old reservation. Pop Century had 15% off Standard-pool view rooms which still saved me about $200 to switch up. It appears the choices and rooms are very very very limited. Don't wait.