When I save my custom post type, the select values get duplicated. I start with only one in each section, but after the first save, 2, second save, 4.

I attached an image of what it looks like. Also when the fields get doubled, it removes the two HTML fields I have from view.

<?php
/*
Title: Details
Post Type: trip_reg
*/

global $typenow;
if (is_edit_page('edit') && "trip_reg" == $typenow){

$postid = get_the_ID();
//Event Details
$trip_id = get_post_meta( $postid, 'reg_trip', true);
$location_id = get_post_meta( $trip_id, 'trip_location', true);
$tripbegin = get_post_meta( $trip_id, 'trip_begin', true);
$tripend = get_post_meta( $trip_id, 'trip_end', true);
//User Details 
$user_id = get_post_meta( $postid, 'reg_user', true);
$user_fname = get_user_meta($user_id, 'first_name' , true);
$user_lname = get_user_meta($user_id, 'last_name' , true);
$user_email = get_user_meta($user_id, 'user_email' , true);
$user_number = get_user_meta($user_id, 'user_number' , true);
//Booking Details
piklist('field', array(
  'type' => 'html'
  ,'label' => 'Event Details'
  ,'value' => 'Event: ' . get_the_title( $trip_id ) . '<br />Location: '. get_the_title( $location_id ) . '<br />Dates: ' . $tripbegin . ' - ' . $tripend
  ,'on_post_status' => array(
    'hide' => 'draft'
   )
));

piklist('field', array(
  'type' => 'html'
  ,'label' => 'Person Details'
  ,'value' => 'Person: ' . $user_fname . ' ' . $user_lname . '<br />Email: ' . $user_email . '<br />Phone: ' . $user_number
  ,'on_post_status' => array(
    'hide' => 'draft'
   )
));

$trip_price_array = get_post_meta($trip_id, 'trip_price_type', false);
if(in_array("trip_custom", $trip_price_array)) {
	$key = array_search("trip_custom", $trip_price_array);
	$trip_custom = get_post_meta($trip_id, 'trip_custom_items', false);
	unset($trip_price_array[$key]);
	
	foreach ($trip_custom[0]['trip_custom_name'] as $customkey => $customname ) {
	$trip_price_array[]=$customname;
	}
}

piklist('field', array(
        'type' => 'select'
        ,'field' => 'reg_trip'
		,'label' => 'Mission Trip'
		,'choices' => $trip_price_array
      ));
	  
piklist('field', array(
    'type' => 'group'
    ,'field' => 'reg_notes'
    ,'add_more' => true
    ,'label' => 'Notes'
    ,'description' => 'You can add private notes below for internal reference that only team members will see.'
    ,'fields' => array(
      array(
        'type' => 'text'
        ,'field' => 'note_author'
		,'value' => $current_user->display_name
        ,'columns' => 3
		,'on_post_status' => array(
			'value' => 'approved'
		)
      )
      ,array(
        'type' => 'text'
        ,'field' => 'note_date'
		,'value' => date("m/d/y")
        ,'columns' => 2
		,'on_post_status' => array(
			'value' => 'approved'
		)
      )
      ,array(
        'type' => 'textarea'
        ,'field' => 'note_text'
        ,'columns' => 7
        ,'attributes' => array(
          'placeholder' => 'Your Notes'
        )
      )
    )
  ));
//END OF ONLY ON EDIT
}

function is_edit_page($new_edit = null){
    global $pagenow;
    //make sure we are on the backend
    if (!is_admin()){ return false;}

    if($new_edit == "edit"){
        return in_array( $pagenow, array( 'post.php',  ) );
    }elseif($new_edit == "new"){ //check for new post page
        return in_array( $pagenow, array( 'post-new.php' ) );
    }else{ //check for either new or edit
        return in_array( $pagenow, array( 'post.php', 'post-new.php' ) );
	}
}

?>