How to get POST field data for customer registration after order form processing?

Question

WooCommerce

Hello! There is a woocommerce store .
I want to make it so that when ordering a product, the company name field is checked and if it is new, then a new user with the client role is created, and automatically without registrations and entering the site.
I wrote the function of checking the required field and creating a user, it remains only to get the value of the form fields to check, and I have a problem with this.
I'm trying to make a check by connecting to the woocommerce_thankyou hook , but the form field can't be caught. $_POST["billing_name"]
Code:

add_action( 'woocommerce_thankyou', 'create_customer' );
function create_customer() {
   $customers = get_users( array( 'role' => 'customer' ) );
   foreach( $customers as $customer ) :
     $my_customer = get_user_meta( $customer->ID, 'billing_company', true );
     if($my_customer!=$_POST["billing_company"]) {
     	$userdata = array(
        'user_pass'       => '123',
        'user_login'      => $_POST["billing_name"],
        'user_email'      => $_POST["billing_email"],
        'user_company'      => $_POST["billing_company"],
        'role'            => 'customer',
      );
      wp_insert_user( $userdata );
     }
   endforeach;
}

Answer 1

Try to catch not the form, but the order. There in its fields there is data about the client

Answer 2

https://docs.woocommerce.com/document/custom-track...
https://stackoverflow.com/questions/39401393/how-t...