Held by customs

So I bought few items from China and I needed an express courier so my supplier shipped it with DHL on the 01_10_2015 via Dubai and on the 02-10-2015 it was already in SA how fast! The on Saturday I received a call that I needed to pay for custom duties then on Monday I paid then my parcel was cleared from customs suddenly the status change to clearence event then Candice called me asked for proof of payment my supplier did send them but they still needed my own and I did send them ,a day after she sent me an email that she will call me shortly that never happened ,each and everyday I called them they will put me on hold for more than 10min or my airtime will finish I will not get response or someone will ask me to give them my details they will get back to me that never happened this made sick for the past few weeks almost 25 days my waybill is *** plz I need your help my BP is out of control I can't help??