Return them, or...you could try soaking them in cold water with vinegar to help set the color - then dry stretched out on the floor. I would soak for 30-40 minutes in cold vinegar water and then switch to plain cold water for a good rinse. This is how I block my 100% wool knitted objects (without the vinegar). It's an old way to color-fast wool, and yarn manufacturers will still do this (occasionally they open a bag of yarn at my LYS and it has the lovely vinegar aroma. As long as the water is cold and you are careful how you handle it when wet it will be fine. Don't hang, twist, or stretch it when wet. Scrunch/ball it up in a towel (then step on the rolled up ball) to get the water out and lay out flat.