Not really. Here is a quick explantation: A "bounceback" reservation is a discount Disney offers if you book another trip while you are still a current guest. Most of the year, it is a % off the room rate for selected dates for the current year. During late August, September & early October (traditional
free dining period), the bounceback offer has been free dining for dates the following year. Sometime in October, the offer changes to a room discount for dates the following year. Each adult staying in the current reservation can book a room & must remain as the lead on the bounceback reservation*. The typical Disney rules for deposit & cancellations apply. That means $200 for a package, 1 night's deposit for a room only reservation. These deposits must be paid at time of booking, there is no grace period. And usual cancellation rules apply too.
Over the years, the info on these offers has been found in the Be Our Guest booklet in the room, on separate flyers left by housekeeping, emailed to you during your trip & on the TV resort information stations. Lately, it is very hit & miss on how you find the offer. Calling Ext 8844 from your room phone brings you to the dedicated future stay line. (Disney actually calls these future stay offers, bounceback is not their term). They will verify that you are a current guest, give you the latest info & book the offer for you.
* Each adult can book 1 room per trip. You can actually book more than 1 trip with each offer. I have booked split stays & 2 different trips several times with no issues.