I usually call 1-2 hrs before to book a punt as most of my punts happen as I get the urge.
Same as me, I may have a time table to keep to. Thus I punt to my (time) needs.
While I'm not doubting the OP, it does seem very out of character for Sindy. Having seen her three times, I've always found her very accommodating.
I wish I could say the same but not having seen her. I can't really confirm what, her character is truly like (from my point of view)
I've tried, several times to book her over the last few weeks. I can understand if she busy or not working that day.
Comm's at first were basic but positive (text only) even recommend a day. I like to speak with a person on the phone, first time (for a number of reasons). If revisit a W/G, I may take the text option. She didn't pick up any of her calls when I tried (and she doesn't have to, it's her choice who she sees).
But the lack of (or poor) comm's her part has made me, move on from this one. I'm not one to jump though hoops, regardless of how good her feedback is.