Device Delivery /New Contract Africa Mobile

I app**** for a device and agent assisted me , everything went well and I was told to pay an activation fee of +- R1400 so that the device will be dispatched. It now a week later no response from them let alone getting feedback . I have tried to reach to them via provided no's none of them works , how do you conduct a business like that with so much of people's money on stake like seriously how do they? I have zero trust and should I have known I wouldn't have approached them from the word go............