I just made all mine apart from the last 3 days and I had to call and get the number from Disney.
My UK number did not work and they gave me one that looks nothing like it which has letters and numbers and its not 12 digits only 8

Was told if I had any problems to call back.
Still it worked fine and all booked and at the times we wanted so I'm happy. All booked on the UK site as well.
Hope all the rest of you manage to get sorted out.