Did you file a Kansas tax return? Did you have a tax due? If you did, how did you pay it? Some people think it was taken out of a federal refund. But it can't be. Or the state changed your return. The letter should say what they changed. Or you have to contact the state.
https://www.ksrevenue.gov/contactus.html
We know nothing about your situation. Are you a resident of Kansas? If not, did you perform any work in Kansas or have other Kansas-sourced income?
you can either leave further details in this thread and we'll try to help or use Audit Defense
The Audit Defense service is provided by TaxResources, Inc., also called TaxAudit.com, in partnership with TurboTax. If you paid for Audit Defense and you received a notice, call TaxResources, Inc. at 877-829-9695, or report your notice on their website at http://intuit.taxaudit.com/. Do not contact the tax agency until you have spoken to TaxResources. They may contact them on your behalf. if you didn't sign up for it there will probably be a fee.