Unable to checkout and apply PROMO codes

Had issues all weekend trying to checkout and apply my PROMO codes to my order.  I click on both boxes and nothing happens.  Also had difficult viewing my shopping basket.  I always purchase my Kohl’s items online with no issues.  This is very frustrating especially since the 30% off ends today.  Called Customer Service and the woman entered my items for me.  Hope this gets resolved soon or i’ll Be doing my Christmas shopping on another website.  Not happy!!