No delivery of hardware, more than 2 months

After being contacted in December about upgrading my DSL line, which I accepted telephonically with the customer service consultant, I still have not received the promised router, wifi extender and decoder that is part of the package. When inquiring at the Telkom shop, I get told that deals done through the service desk will have hardware delivered to my address, they cannot give me the hardware. When I phone the customer service desk, they promise to call back every time but nothing happens. I have even tried to log a fault for this, but it just gets closed without any action or response. I am now being billed for the upgraded service and hardware, but have to date not received anything. Any attempts to get a follow-up or explanations is ignored. I am very disappointed with this - it seems Telkom gets their consultants to sell upgrades that they cannot supply, and then expect customers to pay for it anyway.