public static function dc_addition($id)
 {
     //get the delivery object
     $delivery_object = DB::table('tb_request_delivery')->where('id', $id)->first();
     $user_id = \SiteHelpers::getUserIdFromCustomerId($delivery_object->cid);
     DB::table('tb_request_delivery')->where('id', $id)->update(['parcel_delivery_code' => \SiteHelpers::delivery_code($user_id)]);
 }