Tried calling again a bit earlier today and, again, I gave up trying when there was no answer. I held in there for about 10 rings, same as my previous attempt before hanging up.
So Alex clearly isn't too fussed about taking calls, which is fine if she's with a client. But presumably she doesn't even need to follow up on missed calls or text messages between seeing clients, either. Perhaps she doesn't need any more business? If so that's very nice for her.
Personally, I'm wondering if she's genuinely available.