I've been using wow for years and I've never had a problem with it. I do buy good quality fabric and check for thickness before I buy it. I machine quilt. My DD washes her lap quilt every few weeks and hers is at least 10 years old and still looking good. I've never had the print peel off on anything I've done.
Could it possibly be the detergent or water temperature that you're using? Just a stab in the dark here.....I'm just guessing. If mine peeled off, I would be very upset. I think I would go back to the place I purchased it for some answers.