Parcel lost and no one gives correct information

I have been waiting for my parcel of which was suppose to be delivered a week ago. The post was sent on the 16th of December. When I tried to track the parcel online, it only shows that it has left Cape Town on the 18th of December , but doesn't show that it has arrived in East London. I called Aramex Cape Town and they told me I will receive the parcel Friday last week or Monday this week. Till now still the is no sign of the parcel and also nothing on the website that indicates it has arrived in East London. I have tried calling East London for the past few days but with no avail. I even tried to call Cape Town but no one answers. All I want is to be directed of the whereabouts of my parcel so that I can go and fetch it myself.