I am transporting ******* substances (ask DHL Pretoria)

Yesterday I sent a parcel with DHL. Let me not even go into the details of the mess that happened before it was collected. One-and-a-half hours after collection time, I discovered by tracking the parcel on their website that there was a problem. No one at DHL phoned or e-mailed me to tell me something is wrong. Who knows how many days or weeks I would have waited if I had not seen the website. I phoned and was told the shipment had been stopped but they did not know why. Someone would phone me the following day. At 10AM I was phoned and told they would find out what happened and get back to me. ABt 13h22, I had heard nothing and phoned again. I was on hold over ten minutes and then told they thought the content might be ******* because I had sealed the box and reinforced it with packing tape. I told them to open it and look for these ******* substances. I was told they would phone by by 16h00 at the latest. It is now 17h44 and no one has phoned. The status on the DHL website has not changed. Also, when booking the collection, I asked when I would be refunded the 20% charge in case Postnet, where I had bought the box, had given me the wrong dimensions. DHL never rep****. Postnet had given me the correct dimensions, so I do not know what DHL's issue is there either. As for searching for codes on their website when booking a collection, it is a bit of a nightmare. Their lists and search features are incomplete and not user friendly, You sometimes have to search for the same thing over and over until the website "learns" what you might actually be looking for. The website needs to be fixed too. Come, DHL, you can do so much better.