Poor Dstv customer service.

Hi, I was contacted in early April 2021 by Pricelock to enter in a new contract with Dstv with a new decoder. As my previous contract has ended an my decoder was rebooting several times a day I accepted the offer and was told the installer would contact me in a few days. After about 2 weeks an installer from Centurion contacted me. When I informed him that I stay near Komatipoort he told me they cannot make this installation as it is outside their area. It took 5 calls from my side to inform Dstv that I'm still waiting for the installation and have not receive a new decoder. After several more call to determine progress I was informed that an installer from Malelane will contact me. He did call after two more weeks asking me if I have received a decoder, which I did not. After two more week he suddenly called wanting to install the new decoder that he received that day. Two days later he pitched up with the decoder in a sealed courier package, but after installing the antenna he discovered that the new decoder is an explorer 3 and not the Ultra that was ordered. He contacted Dstv informing them of the error. Dstv promised to escalate the problem and send the Ultra decoder. Now after 10 more calls from my side they are still escalating the problem and still cutting me of while I hold on and waiting for a resolution. The last two reference numbers are ***8 and ***2. The Dstv app does not allow any queries to resolve this issue, nor does their WhatsApp app. Im at wits end and considering cancelling my subscription as the way Dstv treat their customer is shocking. How do I resolve this issue as I stay 550km from their offices.