Takealot have taken R10500 from me and refuses to deliver the goods I paid for

I ordered 2 items from your company, one being a very expensive treadmill costing R10500. Only the cheaper item was delivered to me on Friday 5 October. The takealot customer care agent told me to accept the delivery as the treadmill will follow before 5pm that day. It was not delivered. On Saturday I received an sms confirmation that both items were delivered. Takealot assured me that the treadmill will be delivered today. My treadmill has not yet been delivered. Takealot gave me a Skynet waybill no. (Mdx ********** 8). According to Skynet tracking service both items have been delivered. Takealot agents have assured me that they are aware that I have not received my treadmill but all they say is that they have escalated it. Currently I’m am frustrated . I am out of pocket for R10500 with not treadmill and with takealot not interested in giving me the treadmill or my money back. My takealot ticket number is ********** .