Can 2 people be on the dining plan if they share some part of a reservation? I'll be going 11/01 to 11.07, already booked with the DP. My DS 22 would like to come stay with me 11/02 to 11/05. Can he also get the DP?
You also need to read the threads about whether all guests on the reservation need to be present at check-in (so as to prevent people from making up fake guests to get more DDP credits). Obviously this would be more of a concern for Disney during free dining, and it looks like you're NOT going during free dining, but better safe than sorry.
I called and asked about this for my MIL. I was told that the name would need to be on the ressie but we could use the credits till she got there. It would be $25 a night to have an extra adult in the room. And we would need to let them know that she arrived. She probably has to show id.