No answer for you form DHL

We sent a parcel from UK to South Africa. Parcel arrived in south africa on Saturday. Went for clearance on sunday. On Monday we had no update, tuesday it said shipment on hold on the tracing page. The same on wednesday. I called dhl to find out what the hold up was. My daughter was told they don't know and it is with customs. I called dhl in the uk and they open a tracking case. I was told someone will call me within a few hours. Up to today I have not received any call from dhl. I received an email to tell me they will get back to me on monday evening. Delivery date was 19th December. Today Saturday 21st dhl can still not tell us why the parcel is on hold. Telling us we just have to wait.