Absolutely SHOCKING lack of service

My very urgent shipment was due for delivery before 18:00 yesterday. It never arrived. Then the shipping time updated online to before midnight last night. I sat waiting until midnight, and it never arrived. Now there is no updated delivery date or time. I have ben trying to get hold of someone at FedEx since 6pm yesterday to find out what is going on, and when I will receive my extremely urgent package. I only get automated responses - no help at all. No-one answers the phone, and there is no help through the "help center" online.

THIS IS ABSOLUTELY UNACCEPTABLE!! This is the worst "service" I have ever had from a shipping company. Absolutely NO communication, NO assistance, and from what I can see, NO attempt to get my late shipment to me with any kind of urgency.

From what I can see, my shipment was released from customs, and has been sitting at my local airport for more Thant 2 days now. Why has it not been delivered to me yet??