Bad service from call centre agents

I placed an order with takealot on 01/12/2017. On my profile it was updated that I was to receive the order on the 07/12/2017. To my surprise the order was not delivered. After making numerous calls to the call centre, no one had the decency to call me back or even provide me with a decent feedback. No agent could confirm when my order was to be delivered. I called again yesterday and was promised that my order was to be delivered today. The order was delivered and in errror my helper did not accept the order. I have again called the call centre again today to reschedule my delivery and again NO ONE can provide any feedback,. When ask to speak to a supervisor i get told that they ALL NOT available. By far this has been the worse service I have received from TAKEALOT