Still waiting for a unit that was purchased in stock but now , no stock thus no deivery

We ordered and paid for a unit (in stock, to be shipped from Jhb to Cpt) on the 17th of February 2020. The unit was available for collection on the 27th of February. This changed to the 24th of February, the item was never then available on the 24th. Takealot in turn said they don’t have stock. Now , regardless of any viruses or courier issues, if I paid for and reserved the right to one off the units , where is my unit? It’s the 14th of March and still no show of the stock or this unit or no further information from Takealot. Please explain ….. I want the unit that I put my name to when I made payment. You supp**** me with dates which never worked out. Not happy with this situation, and please don’t have the shrug your shoulder mentality as if to say I may cancel the transaction. I want the unit that was there when I purchased it, simple.