Have you seen her at work?
Possible scenarios:
1) She has had major problems and really wasn't able to be at work or do the curtains.
2) She bit off more than she could chew - and is embarrassed and avoiding you.
3) She scammed you - took your money and fabrics and ran.
I think i would try to rule out #1 before reporting her.
If #1 was not the case, then go for her!
(My DH says I'm a sucker for every sob story and a silly gullible bleeding heart!)