Sorry about this everyone. The casinos should not have been selling seats early. As stated in a different thread some days ago, APAT hoped to investigate whether the entry period could be extended, but it was agreed that seats would be sold "on the day" for this event - to give everyone an equal chance of securing a seat.
I will be sending an email to each of the casinos this evening to clarify that seats should not be on sale yet.
Similarly, APAT has sent a Regional Tournament Pack to each casino via the National Poker Managers at Grosvenor and Gala. This information will not be known across the casinos at this point, but obviously everyone will be made aware of the plans for the weekend.