No communication on delayed parcel delivery

I have since been trying to get hold of courier it to track my parcel, I have not received any response on emails and customer care hangs up the calls every chance they get, its really frustrating how agents are on the other side of the call going about their day and talking about their own things while one is on hold after the phone had been ringing for more than 30 min. The parcel has no update since the 2nd of December, it just says Waybill created. 2 weeks later I am following up each and every day and have never been successful in doing so.