We got that pin too, but when we tried to rebook (as this would have saved us money off of the rebooking rate we have now) they said this cruise date was sold out for the pin. We called the day after we got it, so I'm not sure if it really did sell out that quickly, or if the CM just didn't feel like looking (as she told us it was sold out immediately upon hearing the date).
We also got the cruise docs, but not at our address, the address of our friend sailing with us. Now, that might not seem so strange except that we have never sailed with these people before, we booked totally separately and at different times (us on the ship for a different date, which we then switched at home, she booked months later on the website), ours is with a TA and hers is not, and we don't have the reservations linked yet. So ow Disney knows that we're in any way related to these people is beyond me.