The bounceback is a offer that Disney resorts offer to guests while staying on Disney property. They will usually have a flyer in your room with the dates and offer. However this is NOT always the case. If there is no flyer in your room go to the front desk and ASK for one.
The offer is usually a limited number of rooms and dates for a future trip.
Sometimes it is a percentage off your next stay such as
20% off values
30% off mods
40% off deluxe
They sometimes offer great deals like last Sept I booked SSR for 30% off and
FREE dining.
You MUST book before you check out
They require a 10% deposit
Hope this helps