That Boudoir shoot, the girl hasn't returned my call.

I know the area that she lives in but told her I would call her yesterday to confirm that everything was set and to get the directions. I did that and left a message. Then I called again this morning. Still no return call.
So would you call her and say since I haven't heard from you the shoot is off? If not what?
I can do this crap with all of the crap from the house etc... I have to have things written in stone etc....
And she just called me on Monday night. I didn't go looking for her KWIM?
Gosh can it be Next year already lol.