I've had this loads of times on ebay. As long as she's said they've been shipped there should be no reason why u won't recieve them. Only downfall is, unless she already has, she won't be able to leave u feedback.
I have a habit of buying things on ebay and then the next day I get an email saying the seller has been removed!
I had one last month when the next day the seller was no longer registered. I e-mailed and she said she'd been "hacked". Then became un-registered. I didn't trust her so stopped chq, she got loads of bad feedback and then became un-registered again.
Most people on there are fine, like anywhere a few w**
**rs.