hmm.. for what i know those without the invitation are also welcome.. i went for the previous recruitment, without the invitation and hence was call up for the 2nd interview which is the height n weight taking.. then the group session. there will be only video cum powerpoint presentation, QnA, pass ...
estrella.. dont give up on your dreams yet. just keep on trying. a friend of mine who is now flying with SIA has a height of 156cm.
she said it all depends on the interviewers themselves.
so keep on trying. who knows lady luck will be on your side..