Non-delivery of mobile device

On Friday 9 November 2018 I app**** online for a mobile contract. On Monday 11 November 2018 I was phoned by an agent who took me through the application process, and even though I had to repeat all the information I already supp**** online, the call went smoothly and I was told that the contract was pre-approved and that someone will phone me to schedule delivery of the device. Two days later I was not yet contacted again, but of course Telkom took their first installment! Since then I have tried phoning customer service, chatting to an agent online and even contacting the social media team, to no avail. How long do I still have to wait for the device I already paid for?? The status of my order has been showing 'Checking stock in our warehouse' since Wednesday. Please assist