Surprised by the bad service!!!!

I have always received good service form DHL, until now... In January 2021, I ordered a parcel from Australia and PAID for shipping via DHL. According to the tracking on the DHL website, my parcel cleared customs and departed from the local distribution center on 24 March 2021. When following-up with DHL eCommerce Solutions when my parcel will be delivered, I was informed that my parcel was handed over to "South Africa Post" and that I should follow-up with them on the status of my parcel. WHAT? Why did I pay for shipping via DHL if they were just going to give to the South African Post Office anyway - then I could just have well chosen free shipping and not expected to receive my parcel ever as they are frankly providing a sub-standard service and has lost more than one of my packages in the past? Moving on, I emailed South Africa Post, no response. I tried phoning them, they did not even bother to answer. I went to the post office, and according to them, their system has been offline for 5+ months and they are unable to track any parcels - I should just wait for a slip to be sent to my house. Wow. Just when I thought this country cannot surprise me anymore, then this happens. Can someone from DHL please let me know WHY my parcel was handed over to South Africa Post? What about you contact South Africa Post and get a status update on my parcel since you have such a good relationship with them. And o yes, last thing, their are now email address on the DHL website, only one of those contact forms. DHL respond quickly to a query, but they do not provide any form of contact details (i.e. name, address, contact number) where you can request more information. You have to go through the online contact form again, and again, and again...