Sorry that happened to you.............This is almost a NCNS, but she did answer her phone the first time you called.
I do not know if it is the case since she is so new to Eccie,
http://eccie.net/showthread.php?t=1589232, but sometimes, providers have regulars who book last minute and that session overlaps into a new to her client's session time, or she may have had a session run over because one of the other was late, in any event, it shows very bad TCB skills, but the least she could have done was answered her phone/text you to let you know something. Although at the time, if there was a customer with her, maybe she was unable to answer at the time because he was busy fucking her, making her indisposed. Hopefully, she will get back to you tomorrow and perhaps give you a deep discounted session for your trouble if you are willing.