I once returned a piece of fabric to Joann's because it continued to bleed no matter what I did. I hand washed it in the sink (I do that with all fabric before putting it in the washing machine to check for color fastness). I took it back and told them I could not use it in a quilt due to the bleeding. They took it back no problem.
I don't think I would ever try to return it just because I didn't want it or like the color.