I just rang Disney Central Reservations on 001 407 934 7639 (that's the full number from the UK).
Don't know where to do it on-line, sorry

I like ringing and speaking to a Cast Member as it helps me get in the mood.

If you do ring and get a chance can you ask how ticket sales are doing for 30th November [:P], might need to ring them myself if they are going quick

Brizzle