Takealot always cancels orders for items sold on sale

On 27 June 2022, I ordered a few items on Takealot. On 7 July 2022, Takealot informed me that the order was returned because I no longer want it. Yet, the items were never delivered in the first place. Next, I contact Takealot call centre who advised that the items are lost in transit. Next, I get a notification that my account is credited because the items are no longer in stock. However, all the items who on the app as in stock at the respective warehouses in Johannesburg and Cape Town. But, the prices of the items are suddenly much higher. This is not the first time that Takealot claims not to have the items in stock/items are lost in transit but they refuse to replace the order and rather just credit the account. Interestingly, this happens every time I buy items that are on sale/discounted price. It seems Takealot simply do not want to deliver the discounted items but rather lure you into buying so they can just credit your account so that you buy the items again at much inflated prices