The very thing happened to me a few years ago. I sent backgound fabric and asked that any other fabric be any reds. I got three blocks back that had blues and yellows. When the pictures of the quilts were posted only one person posted she didn't see her block. I pm her and told her that the yellow she picked out was not my requested red and so wouldn't go with the quilt. She responded by saying I should be happy I got a block from her at all as she didn't have money to go buy red fabric. And she wanted an apology from me. I apologized. I said I'm very sorry you are poor. People like that get my mean streak showing. :?