DHL International - very poor service!

I ordered a smart watch from America which was dispatched vie DHL International. After some time the parcel arrived in their New Jersey Depot. There it sat for weeks. I phoned their so called 'helpline' and was told by an Indian sounding gentleman that there was nothing he could do. I managed to obtain the New Jersey Depot telephone number from him and got my daughter in America to contact them. After many attempts she was informed that the parcel had been mislaid. Several weeks later I received notification that the parcel had in fact arrived in Johannesburg. There it sat! In the meantime the supplier had dispatched another watch via international mail. This was subject to my previous review and I was contacted by Busisiwe Sithole from DHL locally who apologised for the lack of service I had received. She requested the Tracking Number which I sent her 3 times. She then phoned me to say that she was from DHL Express and that I needed to contact DHL International. I said no, you contacted me so get someone from International to call me. The next day I received another phone call again apologising for the lack of service - when I gave this new caller the Tracking Number he said that this was for DHL International and that he was from DHL Express. To date I haven't received any further communication.