Struggling to reach anyone

My shipment was stopped by customs - a release came through yesterday. Nonkululeko Khumalo confirmed the release yesterday and that she will get it delivered today by the CPT team. It didn't go out on delivery and I have emailed her 3 times this morning as well as phoned the number on her signature and the airport branches number. I made arrangements for clients and couriers to collect the contents of this shipment today and cannot get into contact with anyone. Please assist