Wisconsin and Virginia law are irrelevant unless you live there. Where do you live, by the way?
Unless you have a very tough state FDCPA type law, I would drop this. They identified themselves as Kohl's when they called, and they provided you monthly with the name of the creditor and the amount. It's on your online statement.
"Authorization: When you apply for a Kohl’s credit card from Capital One, N.A. (“Capital One”,“we”, or “us”), you agree to the following:"