If they switch you from POP just call back every day or so to ask them if anything has opened up at POP. That happened to us last year we lost POP when we added free
DDP (they told us POP was booked for free dining the days we wanted so we called back a few times and POP had an opening and they just switched us over to POP. I have heard some didn't have to switch by adding the free DDP so you may luck out. We are going the last week of Sept. so don't eat all the food before we get there.