If I were you I would ask her about this.  I have had phone consults with her before my appt was on the books.  However, I seldom go over a six week mark.  There have been times where I've talked to her after just three weeks when I was having a rough period.

Matia will tell you how often she thinks she needs to have a phone appointment with you. But if it is in a time frame that does not work for you, then she will understand and you will be able to stretch it out a week or two, but in the very beginning this might be harder I would think and it also depends on your individual case I am sure. I did an appointment every 3 weeks- month for a long time, but now do every 5-7 weeks. Any longer than that is too long for me. And yes, you can only use her email service when you have a scheduled appointment, which really is only fair.
I hope that helps you a bit! Yes, I have felt the crunch many times with how much this treatment costs! I do understand about that! Hang in there :)