The question is...why would you contact her a number of times?
Some ladies get freaked out by that sort of thing and conlude a guy is stalkerish or obsessing or creeping them out.
But if you are not looking at it from their perspective, from the client perspective if I contact a lady and she does not contact me I will call someone else. She is not that unique. Think about it. If you ever did make contact and book a session with her, given your experience so far, wouldn't you be worried that she would be a no show?
She requests a clients ethnicity and age yet in her FAQ she suggests it does not matter. Go figure.