Replace customized area values on edit tackle web page woocommerce

I’ve two customized fields included within the checkout web page and in addition within the edit tackle web page in myaccounts of woocommerce. The issue is the 2 customized fields ‘billing_door’ and ‘billing_flatname’ should not getting up to date if modified from edit tackle web page.
The code I am utilizing to show the fields is beneath. Now how do I replace these fields and retailer it within the database. Thanks prematurely

operate custom_address_to_edit( $tackle ) {
world $wp_query;
if ( isset( $wp_query->query_vars['edit-address'] ) && $wp_query->query_vars['edit-address'] != 'billing' ) {
            return $tackle;
}
if ( ! isset( $tackle['billing_door'] ) ) {
        $tackle['billing_door'] = array(
        'label'     => __('Door No / Flat No', 'woocommerce'),
        'placeholder'   => _x('Enter your door quantity', 'placeholder', 'woocommerce'),
        'required'  => true,
        'class'     => array('form-row-first','update_totals_on_change'),
        'worth'       => get_user_meta( get_current_user_id(), 'billing_door', true )
    );
}
if ( ! isset( $tackle['billing_flatname'] ) ) {
    $tackle['billing_flatname'] = array(
        'label'     => __('Constructing Identify', 'woocommerce'),
        'placeholder'   => _x('Enter your constructing title', 'placeholder', 'woocommerce'),
        'required'  => false,
        'class'     => array('form-row-last','update_totals_on_change'),
        'worth'       => get_user_meta( get_current_user_id(), 'billing_flatname', true )
    );
}
return $tackle;}