Worst service ever

I'm highly disappointed by the service I'm receiving from Sky net. I've been awaiting a package since the 5th of December. I haven't received it and I've been calling non stop but their number just disconnects when someone is supposed to answer. Trying to track it is also the worst as I dont have details of the delivery person so I can call them directly, instead the massage on the tracking system says they haven't been able to reach me