Go to the store and talk to them, they seem to be nice and will understand. They want you to be happy to. Don't worry about the fabric being cut already.
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She lives in El Paso, TX and said that a friend took her to New Mexico, so this would not be a short drive.
She will have to do this by phone, mail, or email. And she should really mention this forum, with all us people who love to shop on the Internet, and who are watching our money. And a lot of us are strong minded old broads (and guys) who are fed up with being cheated!!!