Failed delivery for Explora 2 decoder with Installation for dstv

I ordered a dstv decoder via dstv.com and mthe online payment on 20th June 2018. The sytem immediately tells me the decoder will bedelivered on 23rd June 2018. It also generates an email with invoice recipt and an order number 200618-682 with a hyperlink to track the order number with courier. Strangely this order number cannot be tracked on this link. Nor DSTV customer center can track this order number nor the courier company itself cannot track this order number. No one knows where my order is. Each time different agents in dstv tells me to try different things and no one really knows what is the process. I emailed dstvonline store email id,no response. I emailed ********** as per agent reference,such an email doesnt exist. I have been calling left and right to the call centre thay dont know how to assist me. Its frustrating. I tried the support link on dstv to send a query as well. I dont have any answers. Reference number ********** 8 on dstvonlinestore.