Numéro de TVA intracommunautaire

As store manager, I can create a new order on behalf of an existing customer (for example after agreeing the purchase over the phone).
After I select the right customer in WooCommerce -> Orders -> new screen in the WordPress backend, first I select the right customer. Then I click the Load billing address link. It fills all the fields with the data stored for the customer, but it skips the VAT number that’s on file for the customer.
My feature request is to also fill the VAT number field with the known EU VAT number of the customer.