100$ for certainty? Ill take it!
There’s no such thing as certainty, and the desire for it (along with the assumption that it must exist) is one of the obstacles on the path. What is it that you want to be “sure” of, anyway? That the A.’.A.’. branch you’ve contacted is the “real” A.’.A.’.?
I’ll let you in on a secret: no terrestrial group calling itself “A.’.A.'.” is the
A.’.A.'. The real A.’.A.’. – the One, True Order – is nothing less than the Order of Things itself. Being initiated into this Order is the process of progressively acquiescing to your place in the Order of Things, discovering and accepting who you are and what your nature is.
No one can do that for you, and there’s surprisingly little that other people can even do to help you directly, since the material you’re working with (your observations of yourself) are available only to you. This is consistent with the idea that no one else can “initiate” you, that all initiation is self-initiation.
You can’t be absolutely “certain” of what I’ve just said, but you can get pretty damn close to it.