Well, there could be a perfectly simple answer that she may be on holiday for two weeks... lots of people don't take their mobiles on holiday - Me for one, it's the last thing I want on holiday is a phone ringing!
My advice would be to go to the shop and see her - ask her if she got your texts and message and if she hasn't she'll let you know. If she says she did, then I think you're entitled to an explanation. I wouldn't read too much into what you see on line. I know it's easy to get suspicious when bad reviews come up on the internet but there are a lot of nasty minded people who do these sort of things just for the hell of it just as they do when they write bad reviews on hotels etc. A quick visit to the shop will ease your mind one way or the other. If you do decide to go with her after catching up - be sure you get a contract from her with a receipt for your deposit if you haven't already.
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