misleading information by Takealot

I have just a bought two items from takealot. The order is Order #***. When I was buying the system confirms that I will get my order tomorrow, 24 May. For the items to be delivered tomorrow the system added an option where I elected to pay extra more for the fast delivery. However after paying the system is now informing me that the stuff will only be delivered on 28 May. I am really disappointed since I was promised a fast delivery. The other bad customer service about takealot is that it is hard to communicate with them. The Help Centre is no helpful at all. I really my things to be delivered on Saturday in line with the sale.