title: Redirect to new page after coupon is applied in woocommerce
body: <p>I want to redirect my cart/checkout page to new page if coupon is applied in woocommerce.
  I have a coupon for free print. If user applies it, I want the page to be redirected to a new page where user are given some products to choose.
  I'm having great trouble to redirect the page after the coupon has been applied.
  Any problemm would be greatly appriciated.</p>
  
  <p>Thanks</p>