I agree with what the others said. I do my own quilting and as it rolls up I can tell what is happening and it is always that I loaded it wrong or something that I did, the quilting was fine.
I would go back to her and tell her how unhappy you are and ask her to show you where you made the problem. I would ask for a refund or a re-quilt if possible. Have you talked to anyone else who has been to her? It would be interesting to find out how many times she has used that line on others.