That correct?
No, I think he moved back to his dad's congregation from another in the UK so daddy could take care of his mess (sex chats with "girls"), then he left the UK subsequent to that (because Elder powers don't work on the muggles in law-enforcement)
He was never Df'd for apostasy AFAIK, or else I would imagine he would have recorded it and made a big deal of it. So what he was Df'd for is probably something he doesn't want anyone to know about.
Otherwise, what possible reason could there be for someone who makes a career and income from ranting about the sins of the WTS for keeping his damning knowledge / bargaining chip about them secret?
One thought might be that whatever it was, it maybe involved him ... and "girls" again?
BTW: I believe that "the girls that are definitely older than 20" were the Thai prostitutes, not necessarily other "girls".