Expited Mail Service not what the name suggests

I posted a parcel to Germany on 12 March 2015. I was told delivery takes 3 to 5 days. As at 30 March 2015 the parcel has still not reached it's destination. I emailed the customer care number a week ago and still no reply.<br> I phoned the Rant en Dal Post Office where I posted it and they don't answer their phones, they told me they dont answer their phones when there are customers in the shop. I went in twice but all they could tell me it left South Africa on 18th March. The customer care line also does not answer their phones. The parcel cost R1800-00 to post! If the parcel does not reach it's destination by tomorrow it will be too late as it was stock for a trade fair. Will they refund me the postage and the contents as I have paid for the contents and cannot return the contents back to supplier?