This is precisely why I don't trust anyone's cutting but my own. If a mistake is made, it has to be mine!! Cut or not, that store needs to take those strips back and send them back to Northcott. Faulty product is faulty product, if you cut some or not. You should not have to inspect the entire package of strips before using them. That's shameful!!
So a word to the wise....buy yardage and cut your own pieces!! It's cheaper, first of all, and if a mistake is made at least it's your own mistake!!