Almost a month! Where is my parcel DHL??????

Where do I even begin? I bought a few items from the USA on the 17th of March , paid delivery fees and DHL was chosen by the seller. So basically, l haven't even chosen them as a service provider, and yet here I am dealing with their nonsense. Where is my parcel? 17 days after the estimated arrival date and my parcel is not here in South Africa!!! I've sent emails to their customer support and got hit two times by an automated reply bot. No update on the tracking site, just nothing. The last activity on the tracking site was on the 26th of March and nothing after that, my parcel is apparently taking a vacation in Frankfurt, Germany and there is nothing I can do about it! Do the right DHL and ship my parcel to South Africa. I want my parcel and I want it Now!!!!!!!! Worse customer service ever!