Of course the girl exists. I doubt anyone here is competent enough to use AI to make fake people photos. What's more likely is any or all of the following-
The girl has handlers on this forum.
The number given out belongs to one of her handlers not actually to the girl.
The girl is only available, as you said, through her SP and her reputation is being created as an indie.
The girl has suddenly stopped co-operating with her handlers and since giving out her number would actually expose them they have started making up excuses.
The girl quit the profession and now they regret promoting her.
Why else do you think they are writing response after response to defend themselves instead of just giving her number out to a bunch of independent old members or even the new ones? That's the easiest solution possible to prove me wrong. But they can't do that because they made a mistake and are trying to cover it up.
Open challenge to these people-
I'll give you 6 random members of this forum chosen completely randomly. Give them her number and even if one just one of them can secure a meeting with her at a hotel of his choice then I will publicly apologize.
Checkmate.