UPS picked up our package containing our passports (sensitive info related to ID), did not deliver it next day air, and either lost them or is involved in a cover up to them being stolen. No supervisor will speak to us despite waiting on hold for them 15, 30, 45 minutes and longer before being disconnected or hanging up. They closed their search for it only after 2 days though every agent told us they will continue for eight days. We forced them to reopen it and they still are nonresponsive.