NAS london recruitment
A friend applied in London and got an interview about 2 days later, it only lasted the morning and then she said there was an afternoon group.
Couldn't tell you if they recruit in ME or any other locations, that you would have to ask them, but others I know have applied from there so maybe.
Wouldn't bother doing a sickie and just show up because you heard there was an interview day - they have an hour long aptitude test and obviously some kind of paperwork on the candidates in advance. If you've missed this round I can imagine there will be more.
Good Luck