On checking the UK site I don't seem to be able to get the Premium or Platinum with the UK packages - I think this is because UK guests already get a different type of ticket... also I suspect that these packages would be ultra expensive in $$ for the usual fortnight that UK visitors go to Disney. All the extras are unlimited, in the main, for those packages so US guests who typically stay just 5 nights are not going to hit into Disney's profit on this package unlike the UK guest who stays for a fortnight, at least that would be my assumption as to why it's not offered through UK packages. It's a shame though that they can't do something special for the UK traveller though.