I just want share my experience to other people here.
I contracted with AAS and have known it since February, 2012.
I went to England first for a refreshment course provided by NFS and then
sent to Germany for a simulator session which is an interview for an African airline.
I got a kind of 'fail' for the interview but AAS made another arrangement for me.
I'm a trainee of the airline now and have flown about 150 hours on type of A320.
That's it!