As a new user, I wouldn't want to contradict anyone, but I am surprised to read what has been posted in this forum. I got back from Madrid (Aerofan) just two weeks ago, took the Aerofan file along to Gatwick, together with my licence, logbook etc, and (after paying the usual ****ing CAA fee!!) got my IR and MEP inserted 2 days later. Aerofan was recommended from a friend who completed IR conversion training there in April this year. He didn't seem to have problem at either.
If you can forgive them for being Spanish, it's a school I'd highly recommend!!!
Enjoy the sun!!