title: Change Shipping method TITLE after order in woocommerce
body: <p>I want change the shipping method title (view image) after create the order. I using hook &quot;woocommerce_thankyou&quot;, but i can't change the title of existing shipping.</p>
  <p><a href="https://i.stack.imgur.com/HUbzr.png" rel="nofollow noreferrer">image with i want change</a></p>
  <p>I find this code, but with this code add a new shipping method but it's not what i want, because after this code i have 2 shipping method.</p>
  <pre><code>$item = new WC_Order_Item_Shipping();
  $item-&gt;set_method_title( &quot;SEUR Estándar&quot; );
  $item-&gt;set_method_id( &quot;seur&quot; ); // set an existing Shipping method rate ID
  //$item-&gt;set_total( $new_ship_price ); // (optional)
  //$item-&gt;calculate_taxes($calculate_tax_for);
  
  $order-&gt;add_item( $item );
  
  $order-&gt;save();
  </code></pre>
  <p>Thanks for your help.</p>