title: Set WooCommerce user billing and shipping country programmatically
body: <p>I use WooCommerce and I build some custom functions.
  The last thing what I want is set the country for billing and shipping programmatically.</p>
  <p>I removed the input billing_country and shipping_country from the checkout page.</p>
  <p>Is there a way to set the billing_country and shipping_country programmatically?</p>
  <p>I tried <code>WC()-&gt;customer-&gt;set_shipping_country('US');</code> this set only the country for the cart and checkout page but does not send the country by submit.</p>