I can't see anything about that on the City forum, but most people seem to be concerned that the tickets won't arrive on time - apparently if you don't receive them by saturday SeeTickets will print you off new ones and dispatch them from the stadium which will be complete crap.
Mine also arrived this morning, in the same location as i booked. The extra 700 have also all been sold now, we're not expected to be given any more as apparently the brighton family have almost sold out too.
Football Factory - recommended viewing for all before this Sunday, you c**ts.