title: How to hide payment gateways for free products in WooCommerce?
body: <p>I have a free product on woocommerce. But the stripe payment gateway ask for credit card payment even if it is free with a total of 0€. User can’t checkout without filling the stripe cc form.</p>
  
  <p>Credit card info are not necessary when the product is for free.</p>
  
  <p>I am sure I am not the only one on earth who add some free product in a woocommerce shop. How can I hide this "credticard form" in the check out page in order to let my members access to my free product? Do you know any plugin or hack?</p>
  
  <p>Thanks</p>