No delivery for two weeks

Airwaybill - ***, I bought a dress in China and on the 30 September 2015 it was shipped by DHL to South africa and it arrived on the 2nd October 2015, on their online tracking system it was estimated that the delivery will be on the 05 October 2015, well I guess the date is still coming for DHL as it's been two weeks and I always told that my parcel is at custom, how pathetic, and I only get feed back when I enquire by email because their phones are not answered, I NEED THE DRESS ON FOR THE 17 OCTOBER 2015 AND TODAY IS THE 16 OCTOBER 2015 14:55 AND STILL NO RESPONSE, I'M HIGHLY DISAPPOINTED AND FRUSTRATED.